1. 睡着：at rise 起幕时 | at roost 睡着 | at school 在学校
2. 歇着, 睡着：at risk || 在危险中 | at roost || 歇着, 睡着 | at sb.'s back || 支持某人
1. Christopher Stevens at the hands of an extremist mob is a sad case of chickens coming home to roost for US and Western policymakers.
2. It was like another Olympics had come home to roost at the Bird's Nest.
3. A new show by director Lu Chuan is coming home to roost at the Bird's Nest.