Focuser
聚焦放大镜, 聚焦装置
🗣️ 情景例句
This DJ is really good.
这个DJ真棒！
Happy is he who owes nothing.
无债一身轻。
They teach us Chinese and we teach them English. Please write soon!
他们教我们汉语，我们教他们英语。请赶快回信。