Revving
v. <口>（使）加速( rev的现在分词 ); （数量、活动等）激增; （使发动机）快速旋转; （使）活跃起来
🗣️ 情景例句
Yes.
有。
Fighting one's own.
起内哄。
If you want to send a letter to an office abroad that is in a different time zone, you can send a fax, and it will be received even though the office is not open.
如果你要寄信到不同时区的国外办公室，你可以发个传真，即使办公室不开门，信也会被收到。