Done by meanness or fraud.

用卑劣或欺诈手段的。

Deceitful; sly.

欺骗的；狡诈的。

Of a ball, thrown with an upward swing of the arm, with the palm turned up.

低手投的(掷球时掌心向上而臂向上摆动的一种球技)。

Unfairly.

不正地；不公允地。