- 重点词汇
- 活动
activity; exercise; task; play; operation; operations; doings; movement; action; event; campaign; ballgame; caper; activate; operate; act; flex; insinuate; active; movable; moving; -ics
- 须知
notice; must-know; instruction; guideline; points for attention; must know; need to know; should be aware of; have to understand; it should be understood that; one should know that; it must be understood that