a cockpit（驾驶舱）
the place where the pilots sit to control the plane

a galley（机舱厨房）
the area on a plane where the cabin crew prepare meals and store duty-free goods etc.

a trolley（手推车）
a small cupboard with wheels. Cabin crews use trolleys to take food and drink to passengers during a flight

a seatbelt（安全带）
a safety feature on planes to secure passengers in their seats

an oxygen mask（氧气罩）
a piece of safety equipment which passengers put over their nose and mouth to help them breath if there is an emergency on a plane

an overhead locker（头顶行李柜）
a storage area above passengers' heads in a plane

a tray-table（椅背小桌）
a small table that is stored in the back of the seat in front of you on a plane

hand luggage (uncountable)（手提行李，不可数名词）
small bags or suitcase which passengers carry with them onto the plane

checked baggage/luggage (uncountable)（托运行李，不可数名词）
large suitcases or bags which passengers don't carry with them onto the plane but which are put in the hold (the storage area of a plane)

Verbs about air travel:（搭乘飞机有关的动词）

to check in（办理报到）
to show your travel documents to the airline staff in the airport so that you can begin your journey

to board/to embark（登机）
to go onto a plane at the beginning of the journey

to disembark （下飞机）
to get off a plane

to take off（起飞）
to start flying in the air

to taxi（滑行）
to move a plane slowly along the ground before or after flying

to cruise（巡航）
to fly at a steady speed

to land（降落）
to bring a plane down to the ground

to fasten/unfasten a seatbelt（系紧/松开安全带）
to secure two parts of your seat-belt together/to untie your seatbelt

to approach (the runway)（转向跑道飞航）
to fly at slow speak towards the runway

to declare（申报）
to give information about goods or money you are bringing into a country