She had a dimple which appeared when she smiled.是什么意思？

She had a dimple which appeared when she smiled.

她一笑就现出酒窝。

she

pron. 她，它；

例句
Her lover walked out on her after she had aborted their child.
她的情人在她打掉胎儿后甩了她。

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

dimple

n. 酒窝，笑窝；vt.& vi. 使起微凹，（使）现出酒窝；

例句
She had a dimple which appeared when she smiled.
她一笑就现出酒窝。

which

pron. 哪一个，哪一些，哪个，那，指前面提到的事物；adj. 哪一个，哪一些；

例句
...the latest date at which a foetus can be aborted.
能够打胎的最迟日期

appeared

v. 出现( appear的过去式和过去分词 )，出庭（作证或受审），演出，发表；

例句
All in all, it appeared that a pretty depressing summer awaited Jones.
总之，等待琼斯的似乎是一个相当令人沮丧的夏天。

when

adv. 什么时候，（用于时间的表达方式之后）在那时，其时，当时；conj. 在…时，既然，如果；pron. 什么时候，那时；n. 时间，时候，日期，场合；

例句
It was a Christmas when shoppers passed by expensive silks in favor of more practical gifts.
这是一个购物者不理会昂贵的丝绸衣服而热衷于更实用礼物的圣诞节。

smiled

v. 以微笑表示( smile的过去式和过去分词 )；

例句
Farling smiled in acknowledgement and gave a bow...
法林微笑示意，又躬身行了个礼。