Preconditioner
[化] 预调节器
🗣️ 情景例句
Why don't we take a walk down to the river?
我们何不一路散步到河边去呢？
It is too late to shut the stalbe door when the steed is stolen.
失马锁厩，为时已晚；贼去关门，为时已迟。
They were climbing up the wall of the house and then on to the leaves of the tree.
它们正在顺着房子的外墙往上爬，然后爬上树叶。