In the Middle Ages, a professional soldier who sold his services, often to the highest bidder.

中世纪之佣兵(受雇于出价最高者)。

One who acts, speaks, or writes irrespective or regardless of any authority but his own.

行动或言论有自主立场之人。

A writer, actor, etc. who is not under contract for regular work.

无合约之作家、演员等。