中世纪时期，国王们经常为了领土而发动战争。

In medieval times, ___kings often waged wars for territory.

迈克尔·乔丹被誉为篮球界的王者。

Michael Jordan is hailed as the ___king of basketball.

将军！你的王被将死了。

Checkmate! Your ___king is trapped.

我手上有两张国王牌。

I have two ___kings in my hand.