Pyrrolidine
吡咯烷, 氮雜戊環, 四氫化吡咯
??? 情景例句
Advertisements are ofter misleading to consumers.
廣告經常誤導消費者。
I wish you to be more careful.
我希望你更謹慎。
We're not going to have any classes next week.
下周我們不上課。