例句與造句

1. Pollen transfer has been suggested to occur by body surface transport on mouthparts and head surfaces like that in bee flies and hover flies, but no such associated pollen has been found, though the insects were preserved in amber.
2. Males of fly species such as " Cuterebra ", many hover flies, bee flies ( Bombyliidae ) and fruit flies ( Tephritidae ) maintain territories within which they engage in aerial pursuit to drive away intruding males and other species.
3. It's difficult to find hover flys in a sentence. 用hover flys造句挺難的
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