Tubesheet
[化] 管板
🗣️ 情景例句
Ah, you are an early bird then!
你原来是早起的人。
I'd like to make an appointment with Professor Smith. Would 9:00 tomorrow be all right?
我想和史密斯教授约个会面时间。明天9点行吗？
Was he absent from school last week?
上星期他没上学吧？