Etra
abbr. estimated time to reach altitude 预计到达某高度时间
🗣️ 情景例句
How long?
多久？
There are seven of us altogether.
一共有7个。
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。