繁忙

busy; bustling; heaving; hectic; alive; rush; bustle; hum; all go

紧张的

uptight; nervous; intense; strained; tensional; strenuous; taut

活动

activity; exercise; task; play; operation; operations; doings; movement; action; event; campaign; ballgame; caper; activate; operate; act; flex; insinuate; active; movable; moving; -ics