Hisam
[计] 分层索引顺序存取法
🗣️ 情景例句
You are twenty-one, a grown-up young lady old enough to make up your own mind.
你已经21岁了，已经到了可以自己做主的年龄了。
I played in the yard this afternoon.
我今天下午在庭院玩。
I've been looking forward to it.
我一直都盼望着它呢。