Astm
[化] 美国材料试验学会
🗣️ 情景例句
I'm sick and tired of your criticisms.
不要再说了，我已经听腻了你的批评。
You're always mixing me up with my twin sister!
你老是把我和我的孪生姐姐搞混!
The secretary worked late into the night, preparing a long speech for the president.
秘书工作到深夜，为总统准备发言稿。