Remember how the flight attendant tells you to put on your own oxygen mask before helping others?
Remember how the flight attendant tells you to put on your own oxygen mask before helping others?
记住飞机上的服务员告诉你的，在帮助别人之前先带好自己的氧气罩。
Remember how the flight attendant tells you to put on your own oxygen mask before helping others?
记住飞机上的服务员告诉你的，在帮助别人之前先带好自己的氧气罩。