Variopter
(滑动)光学计算尺
🗣️ 情景例句
Hello, hello.... Oh, hi, Susan.
喂 喂……啊 嗨 Susan
Save a thief from gallows and he will help hang you.
放虎归山。
I'm sorry, but this week isn't very convenient for me.
对不起，这个星期我都不方便。