- 重点词汇
- 地铁
subway; tube; metro; underground; underground railway; rapid transit
- 逃生
escape; flee for one's life; run for one's life; fly for one's life
- 福利
welfare; benefit; provide welfare; offer benefits
- 活动
activity; exercise; task; play; operation; operations; doings; movement; action; event; campaign; ballgame; caper; activate; operate; act; flex; insinuate; active; movable; moving; -ics