Collimator
n. 准直仪\\n[化] 准直管; 平行光管
🏥 医学释义
准直器，平行光管
🗣️ 情景例句
No thanks. Maybe some other time.
不用了，谢谢。也许下次吧。
You say it, but you don't mean it.
口是心非。
When might you go?
什么时候想去呢？