讲解：
used to
(用于过去持续或经常发生的事)曾经:
We used to go sailing on the lake in summer.
从前的夏天,我们经常泛舟湖上。

the trick is to do
技巧；诀窍；窍门:
The trick is to pick the animal up by the back of its neck.
窍门在于抓住动物的后脖颈把它提起来。

soak (sth) (in sth)
浸泡；浸湿；浸透；湿透:
I'm going to go and soak in the bath.
我要去泡个澡。

first off
首先:
First off, let's see how much it'll cost.
首先咱们看看这要花多少钱。

go off
开火；爆炸:
The gun went off by accident.
枪走火了。

notorious (for sth / for doing sth) | ~ (as sth)
声名狼藉的；臭名昭着的:
The country is notorious for its appalling prison conditions.
这个国家因监狱状况恶劣而臭名远扬。

puff up | puff sth up
膨胀；使膨胀:
Her cheeks puffed up.
她的腮帮子鼓了起来。