a tough nut
n.<口>难对付的人, 与之打交道有危险的人
热门单词
- a nodding acquaintance
- a world of
- ABCS
- abigail
- absorption of moisture
- abstinyl
- acceptance commission
- accessory sac
- acclivous
- accommodation plan
- accumulative
- accumulative crystallization
- accurate measuring instrument
- acetanilid
- acetylene reduction
- acetylenic
- acid alkylation
- acid endurance
- acid pickling
- ackee
- acknowledge the corn
