“蚂蚁非常聪明”，廉博士解释说，“他们每个个体相对来说是弱小的，但如果你不加注意，他们会酿成大的灾难。”

Ants are smart "Dr. Lian explains." they are relatively weak individually but if you don't pay attention to them they can cause a big disaster.

youdao

但如果你在街上与她偶遇，她的声音绝对不会是你第一件注意到的事。

But her voice is far from the first thing you would notice if you bumped into her in the street.

youdao

但如若和大多数人一样，你的清单中包含的项目远远超过了这天可以完成的，特别是如果在结束前你受到了打扰或分散了注意力。

But if you're like most people, your list may well contain more tasks than you can get done during the day - especially if you end up getting interrupted (or distracted).

youdao

But notice unlike a for loop, if you want to declare a variable or increment or decrement to variable, you've got to do that yourself.

但请注意不像for循环，如果你想声明一个变量,或者变大或变小一个变量，你需要自己完成。

哈佛公开课 - 计算机科学课程节选