accumulate例句

Lead can accumulate in the body until toxic levels are reached.
铅会在体内积聚直至造成铅中毒。

We let the mending accumulate until Wednesday.
我们让需缝补的衣服一直积存到星期三.

It was his ambition to accumulate a million dollars before he turned thirty.
他立志要在而立之年以前攒够100万美元。