所有的村民都关上了门没有出来。

All the villagers closed their doors and didn't go out.

youdao

琼斯花了几个晚上等那头狮子，但它一直没有出来。

Jones spent several nights waiting for the lion, but it never came out.

youdao

狐狸把它们带进了自己的窝里。但是它们再也没有出来过。

The fox took them into his den. But they never came out.

youdao

These are elements that have yet to be isolated These are elements that are unstable.

这些元素还没有被提取出来,这些元素很不稳定。

麻省理工公开课 - 固态化学导论课程节选

PROFESSOR: And I didn't write up there but it is one, 1 and we can see that it's 1, 2 because it's 1/2 of 2, 4 minus 2, so 1/2 of 2, the bonding order is going to be equal to one.

教授：我没有写出来，但是是1，我们可以看到为什么是，因为它等于1/2的2，4减去，所以1/2的2，键序等于1。

麻省理工公开课 - 化学原理课程节选

What's the complexity? I haven't talked to the side of the room in a while, actually I have.

我这里没有讲过这些,其实是有啦，这位同学帮我讲出来了。

麻省理工公开课 - 计算机科学及编程导论课程节选