1. At home Alfred Roberts rules the roost, and there was no question that what he said went. 在家里，是艾尔弗雷德·罗伯茨说了算，他说什么，就是什么，不容许表示任何怀疑。
2. The isoperoxidases of roost and leaves in wheat on drought salt stress is analyzed by means of polyacrylamide gel slab electrophoresis. 采用聚丙烯酰胺凝胶垂直板电泳法，对干旱和盐胁迫下的小麦根、叶进行过氧化物同工酶分析。
3. The most significant threat to bats is habitat clearance, particularly the removal of the old forest wood where they roost in hollows or under the bark of trees. 对蝙蝠最严重的威胁来自对其栖息地的彻底破坏，特别是对老林区的砍伐，威胁最大。老林区的树洞或树皮内，是蝙蝠赖以栖息的地方。
英英解释
n.
1. a shelter with perches for fowl or other birds
2. a perch on which domestic fowl rest or sleep v.
1. sit, as on a branch
2. settle down or stay, as if on a roost
