值勤 be on duty◇值勤交通警 policeman on point duty; 值勤人员 personnel on duty
守门 1.(看门) be on duty at the door or gate2.[体育] keep goal◇守门员 goalkeeper; goalie; goaltender
门口 1.(门跟前) entrance; doorway; threshold; door; gate 在门口等候 wait at the door; 挂在那家小饭店门口的帘子 the curtain that hangs over the entrance of the small restaurant; 在门口受到欢迎 be welcomed on the threshold; 不要站在门口。 don't stand in the doorway.2.[解剖学] ostium (pl. ostia)