a second bite at the cherry 很明显不是“在樱桃上面的第二口”，用来比喻做某事的第二次机会。

【例句】
They were eager for a second bite of the cherry.
他们渴望能得到第二次机会。

He has failed his driving test, but he will have a second bite at the cherry.
他驾驶考试不及格，但他将有第二次机会。