hit the mark -用法

hit the mark

attain one's object； succeed达到目的；成功

My brother hit the mark when he purchased a quantity of cotton cloth just before the rise in the market. 我弟弟刚好赶在市场涨价之前购进一批棉布，赚了大钱。

Your answer just hit the mark．你的答案正好击中要害。