Opticalmechnical
光学机械
🗣️ 情景例句
is a collection of photographs
是选出的摄影作品
We think $ 87,000 per unit with a five percent discount for orders over 100.
我们减少到每台8。7万美元，订购超过100台给予5%的折扣。
First, I tell the actors where to stand and where to move.
首先，我要告诉演员在剧中站立和移动的位置。