释义 |
cliff swallow cliff swallow n.(名词)A North American swallow(Petrochelidon pyrrhonota) that builds a bottle-shaped nest of mud, grass, and twigs on the face of a cliff or bluff or under the eaves of a roof. 红石燕,崖燕:一种北美燕子(红石燕 鸲燕属) ,用泥、草及细枝在峭壁、陡崖表面或房屋屋檐下筑造瓶状巢穴 |