perches例句
There is a trend for knocking public-school headmasters and headmistresses off their
perches.
现在有一种推翻公立学校校长权威性的趋势。
Other protection can be obtained by providing wooden
perches througout the orchards.
其它保护措施是可在种子园中到处设置木制的栖木.
The birds were hopping about on their
perches and twittering.
鸟儿在栖木上跳来跳去,吱吱地叫着.