"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.
权威例句
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。
2. Time will soon ripen.
时机将很快成熟.
3. The pears will sweeten as they ripen.
梨子熟了就会变甜.
4. Pick and ripen any green fruits in a warm dark place.