Nonhydrocarbon
非烴
??? 情景例句
Wrap him in the blanket, Dad!
用毯子把他裹好， 爸爸！
Bite off more than one can chew.
貪多咽不下。
I was being tested for a driving licence for the third time.
我第3次接受駕駛執(zhí)照考試。