| 单词 | nematodes |
| 释义 | nematodesnematodesUnsegmented, threadlike worms of the phylum Nematoda . Many nematodes are parasitic on humans. They include the whipworm Trichuris trichuria , the muscle worm Trichinella spiralis , the intestinal parasite Strongyloides stercoralis , the hook worms Ancylostoma duodenale and Necator americanus , the threadworm Enterobius or Oxyuris vermicularis , the roundworm Ascaris lumbricoides , the filarial worms and the puppy dog worm Toxocara canis . |
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