a flexible piece of material attached along one edge

• a hinged or hanging cover for an opening, like an envelope or pocket
• a movable leaf or panel attached to only one side

仅一侧固定的柔性片状物

• 用于遮盖开口的翻盖或垂片，如信封或口袋
• 只在一边连接的可动页片或挡片

a movable surface on an airplane wing’s trailing edge

• used to increase lift and drag during takeoff or landing

飞机机翼后缘的可动襟翼

• 起飞或着陆时用于增加升力和阻力

the act of moving up and down like a loose piece

• the sound produced by such movement

像松散片状物上下摆动的动作

• 由此产生的声音

a state of excited activity, fuss, or commotion

• a minor scandal or public controversy

激动、忙乱或骚动的状况

• 小规模丑闻或公众争议

a consonant made by a single rapid tap of the tongue

由舌头一次快速轻触形成的辅音

a partially detached piece of tissue used for surgical repair

• kept connected to maintain blood supply

外科修复用的部分分离的组织瓣

• 保持连接以维持血供

to move something broad and loose up and down

• to wave or swing a flap or similar piece

使宽松的片状物上下摆动

• 摆动或挥动翻盖等部件

to move loosely back and forth or up and down

• to flutter in the wind

松散地来回或上下摆动

• 在风中拍动或飘动

to pronounce a consonant as a flap

• to be realized with a flap articulation

将某个辅音发成闪音

• 以闪音方式实现