Tribophysics
n. 摩擦物理学
🗣️ 情景例句
I found another mistake.
我又发现一个错误。
I'm hoping to spend a few days in the mountains.
我正在希望到在山上过一些天。
Yes, and full payment is due within 30 days.
是的，如果在30天骨付款就没有折扣。