To move to and fro with a short, rapid action.

前后快速摇摆。

To throw with a quick elastic motion.

急投。

To move nimbly.

快速地动。

To make love for mere amusement.

卖弄风情。

To trifle, play, as with an idea.

玩弄(某种想法)自娱。

One who plays at making love.

卖弄风情的人。

A sudden jerk or toss.

急动；速抛。