perch verb
ADV. perilously, precariously The hotel was perched precariously on a steep hillside.
PREP. on The birds perched on nearby buildings.
PHRASES be perched high above/on sth The castle is perched high above the valley. | perch/be perched on the edge of sth I perched on the edge of his desk to listen to him. | perch/be perched on top of sth
You can also check other dicts: perch (English, 中文解释 ), wordnet sense, Collins Definition