Kodaloid
硝酸纤维素
🗣️ 情景例句
I'm a friend of Pete's.
我是Pete的朋友。
The doctor advised me to get plenty of exercise.
医生建议我多锻练。
It did not, however, remain within the confines of his estate.
然而，这种疾病并未被局限在他的庄园内，