earthworm造句

• Earthworms may produce antibiotic substances .
  蚯蚓可以产生抗菌物质。
• The larvae of flies parasitize earthworms .
  蝇的幼虫寄生在蚯蚓上。
• The earthworm population had declined by 70% .
  蚯蚓数量下降70。
• Earthworms have been eaten to cure impotency .
  服蚯蚓可治疗阳萎。
• The ova of earthworms are contained in cocoons .
  蚯蚓的卵是包在茧里的。
• Earthworms have been used in testing pregnancy .
  蚯蚓被用于妊娠反应试验。
• Earthworm channels greatly aid root growth .
  蚯蚓洞穴极有助于植物根系生长。
• An earthworm is a terricolous organism .
  蚯蚓是陆生的生物。
• Earthworms comminute the mineral fraction of soils .
  蚯蚓粉碎土壤中的无机物碎片。
• Many species of earthworms produce cocoons through the year .
  许多种蚯蚓全年产茧。
• Earthworms stop breeding some time before they die .
  蚯蚓有时在它死亡前才停止繁殖。
• There are several other excretory mechanisms in earthworms .
  蚯蚓有好几种排泄机制。
• Centipedes also attack earthworms .
  蜈蚣也攻击蚯蚓。
• Such addition of earthworms to soil seems particularly promising .
  将蚯蚓引入这种土壤特别有效。
• Usually earthworms have two or more pairs of spermathecal pores .
  蚯蚓常常有两对或多对受精囊孔。
• Earthworms may be instrumental in dispersing fungi or bacteria .
  蚯蚓可能是散布真菌及细菌的工具。
• Most megadrile earthworms reproduce by normal cross-fertilization .
  大多数巨蚓的生殖是正常异体受精。
• The numbers of earthworms changed according to the phase of the rotation .
  蚯蚓的数量因轮作状况而有改变。
• Earthworms could readily distinguish between different food substances .
  蚯蚓能够很快地分辨出不同的食物。
• Dieldrin is related to aldrin, and its toxicity to earthworms is similar .
  狄氏剂与艾氏剂有关，对蚯蚓的毒性是相似的。