Waa
abbr. wartime aircraft activity 战时飞机活动; welded aluminum alloy 焊制铝合金; with added adhesive 具有增强的黏附性
🗣️ 情景例句
I'm on the top floor.
我在顶层。
The city is under financial pressure.
本市正遭遇财政困难。
Jim, how long have you been at this school?
吉姆，你到这学校有多么时间了？