carry-on luggage

基本解释

And， passengers must store all carry-on luggage under their seats or in the overhead compartments.
并请大家将随身携带的行李物品放在座位下面或者头顶的行李柜中。
Global travelers now bring in a steady supply from around the world, inconspicuously undeclared in checked bags and carry-on luggage.
现今全球的旅行者们通过他们的托运及携带的行李把它们从全世界带到这里。
We want to travel, we buy a suitcase, a travel pillow, the perfect carry-on luggage, maybe even special clothes or equipment for traveling.
我们想去旅行，就去买旅行箱，旅行枕，很棒的行李袋，甚至可能再买一些特别的衣服或装备为旅行做准备。

Machinery also exists that can detect suspect items in carry-on luggage, thereby avoiding all-too-fallible human judgment.
FORBES: THE AUSTRIAN SOLUTION
British authorities say they were planning to blow up the aircraft using liquid chemicals brought onboard a plane on carry-on luggage.
NPR: Inside the British Probe of the Terrorist Plot