严禁携带充气气球进站，译成英文应该是（ ）。
A.No balloons are allowed in metro. B.Please don't squat, it is dangerous. C.All passengers, please be careful and stay back. D.Please stand behind the yellow safety line while waiting for the train.正确答案A
严禁携带充气气球进站，译成英文应该是（ ）。
A.No balloons are allowed in metro. B.Please don't squat, it is dangerous. C.All passengers, please be careful and stay back. D.Please stand behind the yellow safety line while waiting for the train.正确答案A
