- 重点词汇
- 小学
primary school; elementary school; grade school; junior school; elementary; primary
- 同步
synchronize; sync; synchronous; simultaneous; synchronization; synchronicity; in sync; in step; on the same page; in lockstep
- 课程
course; curriculum; class; subject; lesson; programme; program; track; academic; prekindergarten; timetable; curricular
- 四年级
senior class
- 数学
mathematics; math; maths; mathematical