pickup ponints

例句：

1. 1.I picked up a few books at the library yesterday.
   我昨天在图书馆捡了几本书。
2. 2.The dog picked up on my scent and followed me home.
   狗闻到了我的气味，跟着我回家了。
3. 3. She picked up her phone to call her friend.
   她拿起手机给她的朋友打电话。