如果只有一个话题能保证在家长们的心中引起恐惧的话，那就是毒品。
If there is a single subject guaranteed to strike fear in the hearts of parents, it is drugs.
查尔德把它放回平底锅里之后说：“但你总能把它捡起来，而且如果只有你一个人在厨房里，谁又会看到呢？”
Child put it back in the pan, saying, "But you can always pick it up and if you're alone in the kitchen, who's going to see it?"
她的烹饪节目《法国大厨》的一些观众称，他们看到孩子把羊肉掉在地上，然后捡起来，并建议说，如果只有他们一个人在厨房里，客人永远都不会知道。
Some viewers of her cooking show, The French Chef, insist they saw child drop lamb on the floor and pick it up, with the advice that if they were alone in the kitchen, their guests would never know.
如果只有一层磷脂双分子层，则它们称为单层脂质体。
If there is only one lipid bilayer, they are called unilamellar vesicles.
如果只有我在关注，那么我们就有麻烦了。
如果只有一两层的距离，就直接爬楼梯吧。
如果只有一种方式使用数据库是正确的……
如果只有给出冒号，那么就使用用户的默认组。
If only a colon is given, then the user's default group is used.
同理，如果只有这个密西根家伙，那么也不算疯狂。
Just like it wasn't a crazy thing to say if we only had the guy in Michigan.
如果只有你一个，其余都是男人，那样就很困难了。
If you are just one person, and the rest of them are men, then it's difficult.
如果只有昼夜，没有钟点，人类将返回到原始社会。
If there were not the day and night, were not the time hours, mankind would return to the primitive society.
如果只有他和她，那么共同工作到很晚是否可以接受？
Is it acceptable for him to work late if it's only him and her?
这听起来有点好笑，但是如果只有尖叫，真有点过时了。
If it's just screaming - and I know this sounds so ridiculous - that gets old.
但最坏的情况，如果只有百分之一的话…那还是棒极了！
But worst case scenario, if only 1 percent... that's still awesome!
比如，如果只有一家公司拥有传真机，可能没有什么用处。
For example, if only one organization had a fax machine, it would not prove very useful.
如果只有一个名称空间，可能要求用户提供用户ID和密码。
If only one namespace exists, the user might be required to provide a user id and password.
如果只有一个输入字段，那么该表达式可以返回一个DOM对象。
This expression may actually return a DOM object if there is a single input field.
如果只有一台，告诉他们位置和密码。他们会需要上网的。
If you have one show them where it is and provide them with the passwords they'll need to get online.
但是，如果只有一个或两个孩子，一个女儿出生也就意味着少了儿子。
But if you have only one or two children, the birth of a daughter may be at a son's expense.
如果只有你和他相处困难，那你需要好好反省自己以及你们的关系问题。
If only you have difficulties with him then you need to examine yourself and your relationship with him.
然而，如果只有我自己和几个别的什么人喜欢，那么它一定真的很特别了。
Whereas if only I and a couple of other people like it, then it must be really something special.
如果只有含未使用导入的文件，那么您就可以看到与图3相类似的情景了。
If there are any files with unused imports, you'll see something similar to Figure 3.
强风可能同时将许多游泳者扯入海中，如果只有几名救生员，他们将难以应付。
Strong winds can pull many bathers out to sea simultaneously, overwhelming the guards if there are only a few of them.
如果只有一个变量，要求关于这个变量的偏导，这和通常求导是一样的。
If you have a single variable then the partial, with respect to that variable, is the same thing as the usual derivative.
但是如果只有Bob、Eve和您，某个问题是否正在得到处理将是非常明显的。
But if it's just Bob, Eve and you, it will be evident whether a problem is being handled or not.
如果只有单个客户机线程，那么这相当于400ms的可实现响应时间。
This equates to an achievable response time of 400ms assuming a single client thread.
如果只有单一类型的锁关联到给定表，那么可以添加额外的列到原始表中来控制锁定。
If only a single type of lock can be associated with the given table, then it may make sense to add extra columns to the original table to control the locking.
为了这三分之二的孩子们，如果只有这么多的话，我们是时候来重新设计美国的教育了。
For those two-thirds of grade-school kids, if for no one else, it's high time we redesigned American education.
如果只有这样才能使人们正视面对这一切，我们有理由相信放映这些影像的决定是正确的。
But if this is the only way to make people take this seriously, we believe it is the right thing to show these images.
如果只有一种脉冲——两种的其中一种——与硅条产生共振，硅条只能停留于振动的状态。
If just one of the pulses - or neither of them - resonates with the strip then it remains in its existing vibrational state.
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