常规

❶convention; rule; common practice
❷routine（医）
按～办事follow the old routine;move in a rut/打破～break with convention/血～routine blood test/～部队conventional forces/～裁军conventional disarmament/～疗法routine treatment/～能源conventional source of Energy/～武器conventional weapon(ry)/～军备委员会Commission for Conventional Armaments/～稳定谈判Conventional Stability Talks (CST)