maturate

例句：

1. 1.The fruit is maturing in the sun.
   这个水果在阳光下正在成熟。
2. 2. The plant will mature in six months.
   这棵树将在六个月内成熟。
3. 3.The soil has begun to mature, and the crops are ready to harvest.
   土壤已经成熟，庄稼可以收割了。