To pull something along a surface, often with effort.

• To cause something to rub or trail on the ground.

把某物沿着表面拖拉，常很费力。

• 使物体在地面上摩擦或拖着走。

To proceed slowly or tediously; to lag.

• Of time or events: to pass very slowly.

缓慢、艰难地进行；拖延。

• 指时间或事件：过得很慢。

Resistance from air or water opposing motion of a body.

流体对运动物体的阻力；阻滞力。

A person or thing that is boring, irritating, or a hindrance.

令人厌烦或扫兴的人或事；妨碍、阻碍。

A deep inhalation from a cigarette or similar.

抽一口烟。

To move an on-screen item by holding and moving a pointer.

在电脑上按住并拖动以移动项目。

A systematic, wide-area search by authorities; a dragnet.

大范围的系统搜捕；拖网式搜寻；缉捕网。