"But if you look at it carefully, you find that granite contains quartz, and quartz when its ground to a fine powder and inhaled, can cause silicosis."

VOA: standard.2010.07.26

If you take one of those individual grains of sodium chloride, look at it carefully, you will see the edges look like this.

如果你拿起,氯化钠晶体的一粒，仔细观察，你可以看到这样的棱角。

麻省理工公开课 - 固态化学导论课程节选

and it, probably...if you were to look at everything carefully,

如果你仔细地看所有的东西的话，

大都会艺术博物馆 - SpeakingMax英语口语达人

It is very early in the morning. If you look carefully at the painting, you can see two small points of the color orange.

VOA: special.2010.07.25

So it's initialized outside the loop when it should be initialized inside the loop. Or conversely, inside the loop when it should be outside the loop. So look carefully at when variables are being initialized.

却忘记了,意思就是它本来应该,是在循环外初始化,但是却是在循环初始化的,所以在初始化变量的时候注意这一点。

麻省理工公开课 - 计算机科学及编程导论课程节选