roundworm

That's only three times more than a fruit fly and twice as many as a roundworm.

这个数字只是果蝇的3倍、线虫的2倍.

英汉非文学 - 生命科学 - 生物技术的世纪

Ascariasis is infection with the parasitic roundworm Ascaris lumbricoides.

蛔虫病是由一种叫蛔虫的寄生虫引起的感染.

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