Depending on the sense, the verb need behaves sometimes like an auxiliary verb (such as can or may) and sometimes like a main verb (such as want or try).
根据语义，动词need有时当作助动词来使用（如can或may），有时象实义动词（如want或try）。
The dictionary definition of possible is something "that can or may be, exist, happen, or be done." Each of the following questions I want you to answer yes or no.
在字典里，“可能”的意思是“能够或者也许存在、发生或者完成的东西”，请你用“是”或“不是”来回答下面每个问题。
I may look like a tenderfoot, but I think I can follow a trail or carry a pack if necessary.
我也许看起来像个新手，不过有必要的话我认为我也能跟着上路或扛包。
For example, you may need a large room where everyone can be together for keynote speeches or presentations, and smaller meeting rooms for informal group discussions.
例如，你可能需要一间大房间，在那里每个人都能聚在一起做主题演讲或演示，而较小的会议室则可以进行非正式的小组讨论。
This may cause stomach upset, ulcers, headache, backache, high blood pressure, and in severe cases, this can lead to panic attacks or a panic disorder.
这可能会引起胃部不适、溃疡、头痛、背痛、高血压，甚至在严重的情况下，这可能导致惊恐发作或惊恐障碍。
The bulk of the research shows that there may be a pause, or a shifting of gears in the 40s or 50s, but this shift "can be exciting, rather than terrifying".
研究主要表明，人在40多岁或50多岁时可能会有个停滞时期，或转变阶段，但是这种转变“会让人感到兴奋而非恐惧”。
My notes may or may not be useful but the point is that by writing down what Mr. Brand says I can follow his line of thinking more easily.
我的笔记可能有用，也可能没用，但重点是，通过写下布兰德先生所说的话，我可以更容易地跟上他的思路。
It may be that males can use scarce carotenoids either for immune defense and detoxification or for attracting females.
可能是雄性可以利用稀少的类胡萝卜素进行免疫防御和解毒，或者吸引雌性。
If you can elicit pain at a specific point in a bone, muscle or joint by pressing your finger into it, you may have a significant injury.
如果你把手指压在骨头、肌肉或关节的某个特定部位，就能引起疼痛，那你可能受到了严重的伤害。
If you've explored the area before, keep an eye out for familiar sights—you may be surprised how quickly identifying a distinctive rock or tree can restore your bearings.
如果你以前曾探索过这一区域，请密切留意熟悉的景物——你可能会惊讶于，认出一块独特的岩石或一棵奇特的树竟能如此迅速地让人重获方向。
Now, even though it may be difficult to understand how a huge mass of ice can move—or flow, it's another word for it—it's really no secret that glaciers flow because of gravity.
如今，即使想要知道一大块冰如何移动——或换个词讲，漂浮——是非常困难的，但众所周知冰川漂浮是由于重力。
It may not generate high income, but it can make them feel like they're making contributions in one way or another.
它可能不会带来高收入，但可以使他们觉得自己在某些方面作出了贡献。
A scent associated with a good experience can bring a rush of joy, while a foul odour or one associated with a bad memory may make us grimace with disgust.
一种与美好经历有关的气味会带来快乐，而一种恶臭或与糟糕的记忆有关的气味可能会让我们厌恶地做鬼脸。
They may be aunts or grandmothers (who can live to 100 or more years old) and they may even be members of other families.
他们可能是阿姨或祖母（可以活到100岁或以上），他们甚至也可能是别的家庭的成员。
Many of them may not work or may have side effects that can be dangerous.
许多药物可能不起作用，或者可能有危险的副作用。
If you ever get the impression that your dog can "tell" whether you look content or annoyed, you may be onto something.
如果你觉得你的狗狗可以“分辨”你看起来是满意还是生气，那你可能发现了一些东西。
Although there are some situations where we may experience hardship or even failure, we can always smile to ourselves.
虽然在某些情况下，我们可能会经历困难甚至失败，但我们总是可以对自己微笑。
A poor community in the developing world may find it difficult to bring in foreign fruits or raise cattle for meat, but it can almost certainly use the land it has in order to grow plenty of rice.
发展中国家的贫困社区可能会发现很难引进外国水果或饲养肉牛，但几乎可以肯定的是，它可以利用其拥有的土地来种植大量的水稻。
One of my blog entries, from May of 2016, tells us how hobbies can help us identify some of our passions and that in turn can give us interesting content to include in a life story or memoir.
我2016年5月间的一篇博客文章告诉我们，爱好能够帮助我们发现我们的激情所在，反过来又可以为我们的人生故事或回忆录提供有趣的内容。
Even parents who can see that a trip is little more than a party or celebration may well feel guilt that their child is left behind.
即使是那些认为旅行只不过是一场派对或庆祝活动的父母，也会因为孩子被留在家里而感到内疚。
You can get a new set of tools, or else you may use mine for the time being.
你可以领一套新工具，再不就用我的吧。
The nets can be local, or may include links through Internet Protocol to distant users and other authorized personnel.
该网络可以是本地的，或者可能包括通过互联网协议链接的远程用户和其它授权人员。
Many times, the paths can be congested and there may be accidents, natural disaster or business disputes that can cause transmission delays.
在很多时候，路径可能很拥挤，可能出现事故、自然灾难或业务冲突，这些都会导致传输延迟。
Yet, some searches may be more specialized than the database can perform, or a search may be so complicated that the inherent SQL JOINs are simply too slow.
但是，一些搜索可能比数据库可以执行的搜索更加具体，或者搜索可能过于复杂，而导致固有的SQLJOIN反应迟钝。
Her appearance can lead people to believe and expect that she has mature thinking patterns or can manage her emotions, which may not be the case.
她的外表会让人们相信或者预期她已经在思维模式上成熟了，或者能够控制她的情感，但是实际上可能并非如此。
Nevertheless, whatever its other merits or defects may be, I can assure my readers that it was not my intention to propound a riddle, or insidiously convey any erudite teaching.
然而，不管它的别的优点或者缺点是什么，我能告诉读者的就是，我在诗里无意提出一个谜，或者狡狯地传达什么教诲。
Requirements might be gathered incorrectly; dependencies can be misunderstood; technology or integration points may vary; or the customer can simply change his or her mind.
需求可能收集不正确；依赖关系可能会理解错误；技术或集成点可能会变化；或客户可能会改变其想法。
Users can receive a default notification or can customize the subject and body of the message, and may include other KPI details.
用户可以接收缺省通知，也可以自定义消息的主题或正文，并可以包括其他KPI详细信息。
Whether you can study or work efficiently while listening to music may depend on how outgoing you are.
听音乐时，你能否有效地学习或工作可能取决于你是多么的外向。
They can occur immediately following surgery or may not become apparent for years later following the procedure.
疝气的产生可以在手术后立刻就发生，也可以在手术后数年后发生。
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