What are you doing?

你要干什么

Hydrogen peroxide interacts with the blood's catalase enzyme.

双氧水会和血液里的过氧化氢酶反应

and during a visit to the 1950s,

在1950年间的到访让

You need to take it off this platform and bury it.

你得把这个从发射台上拆下来埋了

Excuse me?

你说什么

- Did you bury it? - How...

-你埋了吗 -你怎么...

Maybe you can come over to my house sometime.

也许哪天你们可以来我家玩

You've only got one, huh?

你只有一个 对吧

What are you writing?

你在写什么

The bar is set awfully high on that one.

那标准可就高了

It also shows the C-H bonds,

碳氢键也在上面

We showed one last time where the hydrogen atoms weren't subtracted.

上次课我们看过没有减去氢原子的图像