"Professional;" • Chinese-English Dictionary
| 励害 | lì hài | professional; |  |
| 懂局 | dǒng jú | to know the business / to know the ropes / in the know / to know one's onions / professional / au fait | |
| 懂门儿 | dǒng mén r | one who knows his business / professional / expert / au fait | |
