一种叫做丝瓜的葫芦科作物被用来制造海绵。

A kind of gourd called the luffa is used to make sponges.

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西瓜、甜瓜、黄瓜、和南瓜等葫芦科作物是世界重要的经济作物。

Cucurbits, including watermelon, cantaloupe, cucumber, and squash, are grown commercially throughout the world.

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虽然这些病毒不能使葫芦科瓜类作物死亡，但能为害它们自然生长过程，使果实产生畸形甚至绝产。

These viruses do not always kill the plant but often disrupt the natural processes so severely that the plant produces abnormal fruit or no fruit at all.

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