Alkanolamine
链烷醇胺
🗣️ 情景例句
In China, Spring Festival is the biggest holiday of the year, but in the west Christmas is the biggest.
中国最大的节日是春节，西方最大的节日是圣诞节。
Do you ever learn Chinese during the holidays?
你曾经在假日期间学中文吗？
Tazieff has often risked his life in this way.
塔捷耶夫经常冒这样的生命危险。