Hydroxyacid
醇酸
🗣️ 情景例句
I've only been waiting for an hour.
我已经等了一个小时了。
How many pieces are you going to take?
你要拿几支？
As there were not enough lifeboats for everybody, 1,500 lives were lost.
由于没有足够的救生艇运载所有乘客，结果，1，500 人丧生。