Preinform
vt.预先通知,预先告知,使预先了解
🗣️ 情景例句
Don't open the door if you don't know who it is.
如果有陌生人敲门不要开门。
How long does it take for a letter to get to California ?
一封信到加利福尼亚要花多长时间？
Yes. It sounded like a train that was going under my house.
是的。这响声听起来像是一列火车在从我的房子下面驶过。