| 单词 | black fly |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔SEE〕This tiny black fly is the biggest cause of blindness in Central Africa. 这种黑色的小苍蝇是中非许多人失明的罪魁祸首。朗文写作活用〔carry〕The disease is carried by a black fly which lives in the rivers.这种疾病是由生活在河边的一种黑蝇传播的。朗文当代〔gnat〕Any of various small, biting, two-winged flies, such as a punkie or black fly.蚊，蚋：一种小的咬人的双翼飞蝇，如咬人小飞虫或黑蚊美国传统 |
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