It means you should never rely on only one plan - in case it goes wrong.
这句话的意思是你不应该依赖唯一的计划——万一出错。
Since we only take one step at a time, there is no need to plan our route for one can make continuous decisions about where to turn next.
既然我们一次只走一步，就没有必要计划我们的路线，因为一个人可以不断地决定下一步去哪里。
If you only plan on capturing metrics for one or two projects, don't bother with this approach.
如果您仅仅计划为一两个项目获取度量，那就不必要用这种方法来费心。
A test case may belong to only one test plan.
一个测试用例可能仅属于一个测试计划。
There was only one pesky flaw in Garcia's plan: the indigenous people who live in the Amazon.
加西亚的计划中只有一个棘手的不足之处：生活在亚马逊雨林里的土著人。
Yes, there is a plan and purpose for us all and, I think, I am not the only one in my community who has a nine-year-old hero.
是的，我们人人都有了目标和计划，我想，在我们社区里，九岁的他不仅仅只是我一个人心目中的英雄。
If only one XML index is available, then DB2 cannot apply this guideline and will instead produce the cheapest alternative plan.
如果只有一个xml索引是可用的，那么DB 2将无法应用这个准则，因而将生成成本最低的替代计划。
I suggest you notice your manager at least one day in advance if you have any leave plan. You only can leave after get the manager's approval.
如果你有任何的休假计划，我建议你至少提前一天通知你的负责人。只有在得到负责人批准后，你才可以离开。
The only big European economy yet to spell out an austerity plan is france-a country badly in need of one.
欧洲各大经济体中唯独法国尚未给出详尽的节俭计划，而它却急需这样一个节约的政策。
One plan achieves more or less universal coverage; the other, although it costs more than 80 percent as much, covers only about half of those currently uninsured.
一个计划达到差不多全民覆盖；另一个，虽然要多花80%，但只覆盖了一半的未参保人。
However, I would recommend that you only activate a data plan when you're sure you need one; it’s only a 30-day commitment.
但是，我建议当你确定要的时候只激活一个数据计划；它只有30天的承诺。
If you plan to use the second option, import only one project at a time instead of multiple projects. Just follow these steps.
如果您计划使用第二种选项，那么每次只导入一个项目而不是多个项目。
Of all the apps mentioned, EasyTweets is the only one to offer a paid plan.
提到所有的应用服务，EasyTweets是唯一一个付费的产品。
Small savings will come from an old plan to replace only one in two retiring civil servants, and he says he will stop ministers claiming a salary and pension at the same time.
根据一项原来的计划，通过替换1/2的即将退休公务员也将节省一部分开支。 菲永还说他会阻止一些部长既要工资又要养老金的行为。
In Mexico a plan to raise beer taxes from 25% to 28% was watered down by lawmakers on October 20th: taxes will now rise by only one-and-a-half percentage points.
墨西哥曾经希望增收25%到28%的啤酒税，但是这个数字被立法者们压下来了：税收仅仅上升了1.5个百分点。
This argument is specious; it is a little like saying that since we only take one step at a time there is no need to plan our route since one can make continuous decisions about where to turn next.
这种观点是不正确的；这有点像既然说我们在一个时刻仅仅进行一步活动，我们完全可以对下一步应该转向哪里做出连续的决定，因此我们没有必要计划我们的路线。
We have no concerns over making sure there is only one tool to do a job included; in fact, we plan to include everything we can get our hands on.
我们并不关心要确保这是实现某种功能所特有的唯一工具；实际上，我们计划包含目前可以使用的所有工具。
To a person, they all supported my decision. Only one mother verbalized the fears I had for the emotional well being of my little charges, but she too supported my plan.
他们都支持我的决定，有一位母亲提到了我心里对那些多愁善感的小男孩子们的担心，不过她还是支持我的。
It's important to plan the project, because once you're in front of the moon, it rises so quickly and you only have one chance to get the shots you want.
制定这个计划很重要，因为一旦你站在月亮前面，它上升得很快，你只有一次机会去拍摄你想要的照片。
One plan being considered would mean it was only visible when users hovered their mouse pointer over a specific part of the screen.
正在考虑的一个计划是，当用户鼠标划过屏幕的特定区域时，地址栏才显现出来。
I have a special medical plan, and I can only see one doctor.
我有特殊的医疗方案，只能看一位医生。
And I plan to make it this time, God willing, one day at a time, but I don't feel safe right now, in the only place I can ever feel safe, here with my Serenity posse Two posse.
我想好了这次一定彻底戒了，上帝的旨意，每天都召唤我。但现在我感到不安，在这个唯一能让我心安的地方，在我的平稳互助见面会二期的当口上。
In his speech Wednesday night, President Obama said the idea is only one part of his plan and should not be used as an excuse.
在奥的周三晚上的发言中，他说这个主意只是他的计划中一个部分而不应该被用为一个理由和借口。
He only want to parents confirmed one thing - is parents is his plan route is wrong!
他只为想父母证实一件事——就是父母为他规划的路线是错误！
Your executive summary is far too long. Please shorten it to one page and only highlight the main points of your business plan.
你的执行摘要太长了，请你压缩到一页纸，只要把你商业计划中的要点突出就行了。
Some people are distracted doing more than one thing at a time so they have to decide on plan a or b, but can only choose one.
还有些人则容易因为数事并举而分心，只得决定是执行a计划还是执行b计划，只能二选其一。
Some people are distracted doing more than one thing at a time so they have to decide on plan A or B, but can only choose one。
还有些人则容易因为数事并举而分心，只得决定是执行A计划还是执行B计划，只能二选其一。
The links below provides not only best practices for providing specifications for server hardware and disk space, but it also helps one plan for a proper deployment. Below are the links.
下面提供的这些连接不仅仅是确定服务器硬件和磁盘空间的具体规格的最好实践，同时也可以帮助你做出一个合适的部署计划。
To illustrate this, compare it to the predicate that is applied to the index scan numbered 5 in the plan, which is on the one and only column of the index on the child table.
为了展示这一点，将它与计划中第5号索引扫描上使用的谓词相比较，它针对子表中惟一的索引列。
To illustrate this, compare it to the predicate that is applied to the index scan numbered 5 in the plan, which is on the one and only column of the index on the child table.
为了展示这一点，将它与计划中第5号索引扫描上使用的谓词相比较，它针对子表中惟一的索引列。
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