问题描述: 翻译:飞机起飞时乘客们应该关掉手机 (用suppose ,switch) 1个回答 分类:英语 2014-10-15 问题解答: 我来补答 Passengers should suppose to turn off the cellphone when the airplane takes off.希望可以帮到你哦 展开全文阅读