Focusing device
[电] 焦点调整装置
🧩 词语组成解析
[化] 调焦; 聚焦
🗣️ 情景例句
especially when he's a baby.
特别是当他还是个婴儿的时候。
The doctor said it's just a mild cold, There's nothing to worry about.
医生说只是有点凉，不需要担心。
Are you sure you can come by at nine?
你肯定你九点能来吗？