Polyisobutylene
n. [化]聚異丁烯
??? 情景例句
Could you work in her place?
你能代替她嗎？
Would you like to leave your name?
你想要留下你的名字嗎？
He asked very politely, Excuse me, have you got any books about the moon and the stars?
“請問，你有關(guān)于月亮和星星的書嗎？”