Percylite
氯铜铅矿
🗣️ 情景例句
Just because you major in English, don't think that you will have mastered real English.
不要以为你是英语专业的就能精通“真正”的英语。
Help the dog over the stile.
助人度过难关。
When Mrs.Richards walked towards him, he fled, slamming the door behind him.
理查兹夫人朝他走去，只见他“砰”的一声关上门逃走了。