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
One piece of advice.
给你一句忠告。
A servant is known by his master's absence.
主人不在可以看出仆人的品行来。
Annie and her brother were sent to a children's home. There the boy died.
安妮和她的弟弟被送往一家孤儿院。弟弟在孤儿院死了。