Polyethylenamine
聚乙烯胺
🗣️ 情景例句
Did you bring your transcript from high school?
你把高中的成绩单带来了吗？
Of two evils choose the least.
权衡两害，取其轻者。
During the summer months, the monastery is very busy, for it is visited by thousands of people who cross the Pass in cars.
夏天的几个月里，修道院十分忙碌，因为有成千上万的人驾车通过山口，顺道来修道院参观。