noun🔗Share蝉，知了。 Any of several insects in the superfamily Cicadoidea, with small eyes wide apart on the head and transparent well-veined wings."During the hot summer days, the loud buzzing of a cicada filled the air outside. "在炎热的夏天，外面到处都是知了响亮的叫声。insectanimalbiologynatureorganismecologyChat with AIVocabulary GamePractice Reading
