Technicon
[音]弹奏技巧练习器
🗣️ 情景例句
I'm in the school choir.
我是校合唱队的成员。
Americans are hight mobile, and therefore may find it difficult to became deeply involued with other.
美国人的流动性，大，因此你会发现和他人深交很难。
I'll put it in my files.
我会将它归档。