v.成熟,使熟( ripen的过去式和过去分词 );
例句:
Our mere acquaintance ripened into friendship.
我们原本仅是一面之交,现已是朋友了.
His love for her had ripened over the years.
这些年来,他对她的爱情已成熟.
The tomatoes ripened on the vine.
蕃茄在藤上成熟了.