Polyacid
a. 多酸的
🗣️ 情景例句
I want to take a flight to New York tomorrow.
我想明天坐飞机到纽约。
To send mail(a letter)
邮寄邮件
He says nothing about the poor selection of goods in the shops, or about those unfortunate people who have to travel from the country to the city every day to get to work.
他也不说商店货物品种单调，以及那些每天不得不从乡下赶到城里工作的不幸的人们。