Preregulator
前置调节器
🗣️ 情景例句
And tell them you want to go on the tour that goes down into the canyon.
跟他们说你要参加到峡谷里去的旅游团。
I beg your pardon?
对不起，请再说一遍。
Which speech are you going to?
你打算去听哪个报告呢？