暗背雨燕 àn bèi yǔ yàn 🔊 dark-rumped swift (Apus acuticauda) + Keep this word Meanings àn bèi yǔ yàn (bird species of China) dark-rumped swift (Apus acuticauda) Its characters 暗àndarkHSK 5背bèithe back of a body or objectHSK 4雨yǔrainHSK 1燕yànswallow (family Hirundinidae)