通过这个图，你可以知道他们意思。

With this chart, you can see what they mean.

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你可以知道每种物质各有多少。

You could easily see how much of each thing is there.

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你可以知道朝向哪个方向才能得到最好的信号覆盖。

You can get a good idea of which direction you might want to go to get better coverage.

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In fact, you could be sitting three years from now waiting before commencement and you can get that grade adjusted.

实际上，你可以从现在到知道毕业典礼前,一直坐等三年,你可以更正成绩。

麻省理工公开课 - 固态化学导论课程节选

it basically will give you an idea of where to go. You have the signs, you can ask anyone,

你基本上就会知道要去哪里了，你可以看看路标，或是问问路，

关于黑人文化 - SpeakingMax英语口语达人

We could get away with just 23 Sodium you could write sodium like this.

从23，钠，我们就知道了,你就可以像这样写钠。

麻省理工公开课 - 固态化学导论课程节选