Preoiler
预先加油器, 预润滑器
🗣️ 情景例句
I can never get ahead at my job.
我总是不能出人头地。
Would you please give us a rough idea of the quantity you require?
请告知你方大概要订多少？
I've been here for about two years. I've been here since 1993.
我到这儿大约有两年时间了。我自1993年就到这儿学习。