flap

Máy bay cánh cố định, cánh quạt; vẫy cánh

to move your wings or a piece of cloth up and down quickly, especially when you are flying

• flap wings

Collocations flap your arms/wings · flap in the wind

• The bird flapped its wings and took off.

  Con chim vẫy cánh và cất cánh.

Rè rè; kêu rít

to make a noise when something moves quickly in the air or water, for example because of wind or waves

• flap against

Collocations flap against the window · flap in the wind

• The flag was flapping in the strong wind.

  Cờ đang phất phới trong gió mạnh.

Da mỏng có thể di chuyển; da lồi

a piece of skin that can move, for example on an animal's mouth or ears

• the flap of something

Collocations ear flap · lip flap

• The dog's ears had long flaps.

  Tai của con chó có những mảng da dài.

Cánh cửa; miếng vải có thể mở ra đóng lại

a piece of material that can be opened and closed, for example on a bag or door

• a flap of something

Collocations door flap · bag flap

• The flap on the envelope was torn.

  Miếng dán trên phong bì bị rách.