a cuckoo in the nest

例句：

1. 1.The old man was surprised to find acuckoo in his nest.
   老人惊讶地发现一只布谷鸟在他的巢里。
2. 2. She was cuckold by herhusband for being too independent.
   她因为太独立而遭到丈夫的背叛。
3. 3. The cuckoo's song is a reminderof the challenges we face as we growolder.
   布谷鸟的歌声提醒我们随着年龄的增长会遇到的挑战。