低年级
a lower grade (in a school) (e.g. 1st or 2nd year); the lower division (of a school etc)
词频 2.7
含义
- a lower grade (in a school) (e.g. 1st or 2nd year); the lower division (of a school etc)
a lower grade (in a school) (e.g. 1st or 2nd year); the lower division (of a school etc)
词频 2.7