啄木鸟在啄木头的时候，每秒头部向树撞击20次，你估计觉得这样它会需要一个坚如钢铁的脑袋来得以生存，但事实上，啄木鸟的脑袋是相对较软的，每只啄木鸟在出生时，鸟喙后长有一个软的海棉状的物质，用来吸收啄木头时所产生的震动。

Instead, the reality is that woodpecker heads are relatively soft. Each bird is born with a soft, sponge-like mass behind its beak that absorbs the shock created by pecking.

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回到警察局后，督察长回了电话。

Back at the station the chief inspector returned the call.

《柯林斯英汉双解大词典》

渡过汹涌澎湃的大海回到陆地后使人长舒一口气。

It was a great relief to be back on dry land after such a rough crossing.

《牛津词典》

There's a lot of words here, long words, pre-synaptic, post-synpatic, but pre, post, you get the idea. Caitlin?

我讲了一大堆生词 长词,突触前,突触后,但是前和后的意思你们明白吧,凯特琳

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and that can be something that you pay off for a long time.

可能毕业后的很长一段时间内都在偿还欠下的贷款。

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The length after a week, increased in their fingers.

一周后，他们的手指变长。

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