pick up the threads

例句：

1. 1.I picked up a book from the library yesterday.
   我昨天从图书馆捡到了一本书。
2. 2.The children were picking up leaves from the ground.
   孩子们正在地上捡落叶。
3. 3. She picked up her phone and called me.
   她拿起手机给我打电话。