Focuser
聚焦放大镜, 聚焦装置
🗣️ 情景例句
There's no other information.
没有其他资料。
He is having a temper tantrum.
他在大发脾气。
Textile business has become more and more difficult since the competition grew.
随着竞争的加剧，纺织品贸易越来越难做了。