Opticalmechnical
光学机械
🗣️ 情景例句
When will you be able to deliver?
您什么时候可以交货？
I'm afraid I've let myself get run-down. I've been working too hard.
我似乎弄坏身体了。最近太过劳累。
What you have just said does hurt him.
你刚才说的话真伤他的心了。