Wathlingite
镁硬石膏
🗣️ 情景例句
We think it might be just right for ten- to twelve-year-olds.
我们想它或许对十岁到十二岁大的孩子正合适。
No safe wading in an unknown water.
未知水深浅，涉水有危险。
When everyone had taken his/her place, the lawyer spoke as follows.
当大家都入座以后，律师作了如下的发言