Unituning
单钮调谐, 同轴调谐
🗣️ 情景例句
Come in. Oh, Carl and David.
哦，是卡尔和大卫，请进。
I ate cakes for dinner yesterday.
我昨天晚饭吃的是蛋糕。
In the library she has got books on many different subjects.
在图书馆里她准备了各种科目的书籍。