Focuser
聚焦放大镜, 聚焦装置
🗣️ 情景例句
OK, let's talk.
好， 让我们谈谈。
If you had gotten up earlier,you would have had time for breakfast.
如果你更早起床，你就有时间吃早餐了。
Looking round, I realized with a shock that I was the only passenger left on the bus.
我环视了一下身旁，惊奇地发现车里就只剩我一个乘客了。