Focusing device
[电] 焦点调整装置
🧩 词语组成解析
[化] 调焦; 聚焦
🗣️ 情景例句
Five five five...one seven two oh. Hello? 555-1720
喂 喂?
Goodbye, it was nice meeting you.
再见，很荣幸认识你。
Mum, I don't feel very well.
妈，我感觉不舒服。