One who keeps, esp. a person who has charge of prisoners. the mentally unsound, or animals.

看守人；狱吏；监护人；看管畜牲者。

One who operates a retail business.

经营者。

Iron bar across the poles of a permanent magnet.

【电】卫铁。

Something that keeps or lasts (well of poorly).

(耐或不耐)储藏之物。

An offensive football play in which the quarterback runs with the ball.

四分卫出击(美式橄榄球的一种进攻战术，由四分卫持球跑)。