Passengers will then be able to switch on their handsets and make and receive calls.

关掉了，旁边的新指示灯“勿使用电话”也一样。这时乘客就可以开启手机接打电话了。

youdao

Passengers will then be able to switch on their handsets and make and receive calls.

关掉了，旁边的新指示灯“勿使用电话”也一样。这时乘客就可以开启手机接打电话了。

youdao