random tooled ashlar

例句：

1. 1. The random selection of the team members was unexpected.
   团队成员的随机选择令人意外。
2. 2. He decided to take a random route home from work.
   他决定下班后走一条随机路线回家。
3. 3. She randomly picked up a book at the library.
   她在图书馆随手拿起一本书。