Tdd
abbr. 时分双工（Time Division Duplex）；测试驱动开发（Test Driven Development）；技术资料文摘（Technical Data Digest）
🗣️ 情景例句
Hobbies are supposed to be relaxing.
业余爱好应该是令人放松的。
He is a doctor. He has his own practice.
他是个医生，他自己开业。
No, we don't.
不，没有。