Bischofite
水氯镁石
🗣️ 情景例句
Keep right unless overtaking.
要靠右驾驶，除非超车。
How did you get so dirty?
你为什么弄得这么脏？
Oh, cheer up!perhaps we didn't to do badly.
啊，别灰心！或许我们考得还不太糟。