Envelops
n. 包络线；信封（envelop的复数）
🗣️ 情景例句
One tiny little touchdown, with just three minutes to play.
一次小小的达阵得分 只剩下三分钟了。
Let me get back to you.
我过一会儿打给你吧。
It's a good idea to hold such conferences.
召开这样的会议真是个好主意。