Biomechanical
生物力学
🗣️ 情景例句
How much is a room per night?
一个房间每晚多少钱？
It is lost labour to sow where there is no soil.
没有土壤，播种也是徒劳。
Please come in and sit down. But come to school earlier next time.
但下次要早点到校。