Focuser
聚焦放大镜, 聚焦装置
🗣️ 情景例句
She has the ability to speak English fluently.
她能够流利地说英语。
As soon as she quit the room he returned to it.
她刚离开房间，他回来了。
may have left an automatic messenger behind to await the possible awakening of an advanced civilization.
很可能会在离开太阳系时留下自动化信息装置，等待先进文明的觉醒。