to ripen成熟
ripen advance提前成熟
ripen n成熟
after ripen后熟成;追熟
unceasing ripen不断走向成熟
seed ripen种子成熟
reluctant ripen贪青
V-T/V-I（及物动词/不及物动词） When crops ripen or when the sun ripens them, they become ripe. (指庄稼) 成熟
I'm waiting for the apples to ripen.
我在等这些苹果成熟。