Bisacrylamind
[机] 双丙烯酰氨
🗣️ 情景例句
do I really have to
我是不是真的有必要
Is meat packing a big industry in your country?
肉制品包装在你的国家是大产业吗？
You don't have many apples, Jim, says Li Lei.
“你的苹果不多，吉姆，”李垒说