"to grow ripe," 1560s, from ripe + -en (1). Related: Ripened; ripening. Earlier, the verb was simply ripe, from late Old English ripian, from the adjective.
双语例句
1. This helps to ripen new growth and makes it flower profusely.
这有助于新生发植株的成熟，令其开出繁茂的花朵。
来自柯林斯例句
2. Time will soon ripen.
时机将很快成熟.
来自《现代汉英综合大词典》
3. The pears will sweeten as they ripen.
梨子熟了就会变甜.
来自《现代英汉综合大词典》
4. Pick and ripen any green fruits in a warm dark place.
