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单词 caterpillar
释义 caterpillar
[`kad·ǝr´pil·ǝr]
INVERTEBRATE ZOOLOGY
1. The wormlike larval stage of a butterfly or moth.
2. The larva of certain insects, such as scorpion flies and sawflies.
MECHANICAL ENGINEERING
A vehicle, such as a tractor or army tank, which runs on two endless belts, one on each side, consisting of flat treads and kept in motion by toothed driving wheels.
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