Bementite
蜡硅锰矿
🗣️ 情景例句
Have a smooth flight.
一路顺风。
This problem is hard to solve.
要解决这个问题不简单。
Many people believe that overweight results from overeating and stress.
很多人认为肥胖超重是因为吃得过多和压力造成的。