你需要一口带有蒸笼的锅，如果没有就临时凑合一下。

You need a wok with a steaming rack for this; if you don't have one, improvise.

《柯林斯英汉双解大词典》

如果你过去没有信心做烙饼的话，就别再被它吓着–真没什么难的。

If you've shied away from making pancakes in the past, don't be put off – there's really nothing to it!

《柯林斯英汉双解大词典》

如果你没有钱，你就无能为力。

If you don't have money, you're powerless.

《柯林斯英汉双解大词典》

So if you haven't already, just glance at the person next to you, or say hello if you don't know them.

如果你还没有做好，那就看看你旁边的人,如果你不认识他们就跟他们打个招呼。

哈佛公开课 - 计算机科学课程节选

If you don't have the units, then if you say the answer is 19, then we don't know what it means.

如果没有的话,比如你的答案是十九,那我们就不知道这是什么意思

耶鲁公开课 - 基础物理课程节选

So if you don't actually assign to something, it falls on the floor and the value goes away.

所以是，如果你没有赋值，它掉在地上，那个值就不存在了。

哈佛公开课 - 计算机科学课程节选