To strike or drop heavily or with a jerk.

重击；重坠。

To throw or move oneself in a heavy, clumsy, or relaxed manner.

笨拙地移动或摔下。

To flap, as the brim of a hat.

拉下(帽沿)。

To change suddenly.

突然改变。

To fail miserably.

【俚】惨败。

The act or sound of dropping suddenly and heavily.

猛落；扑通。

A complete failure.

【俚】惨败。