Perchloroethane
六氯乙烷
🗣️ 情景例句
Alexandra's a high-school exchange student from Greece.
Alexandra是从希腊来的交换高中生。
The Red Cross supervised the distribution of food and clothing to the flood victims.
红十字会坚督分配食物和衣物给水灾受害者。
Only very thrifty children manage to fill up a money box.
但是能把储蓄罐装满的只有屈指可数的几个特别节俭的孩子。