| 词汇 | toad |
| 释义 | toad noun[ C ] uk /təʊd/ us /toʊd/ toadnoun[C] (ANIMAL)a small, brown animal, similar to a frog, that has big eyes and long back legs for swimming and jumping: 蟾蜍，癞蛤蟆 Toads have drier, lumpier skins than frogs and spend less time in the water.蟾蜍的皮比青蛙干燥，疙瘩也更多，呆在水中的时间比青蛙少。 Robert Trevis-Smith/Moment/GettyImages Reptile & amphibian names adder alligator amphibia amphibian anaconda chameleon cobra constrictor crocodile frog lizard loggerhead mamba monitor lizard newt skink slowworm snake snakily spring peeper toadnoun[C] (MAN)informal an extremely unpleasant man, especially one who is not very physically attractive: 极令人讨厌的人；（尤指）丑八怪 [ as form of address ]You lying toad!你这个爱撒谎的丑八怪！ toad | American Dictionarytoad noun[ C ] us/toʊd/ a small animal, similar to a frog, that has dry, brown skin and lives mostly on land Examples of toadtoad Egg production was unaffected by control transfers between healthy toads. Ninety-four percent of toads supported the development of gravid parasites. Top and sides of the enclosures were covered with 0.1-mm mesh screen to prevent migration of litter invertebrates and toads. The selective advantage of this phenomenon is that the overcrowded toads can leave a potentially lethal environment before it is too late. Additionally, adult toads are normally exposed annually to re-infection and may accumulate chronic lung damage with extended effects on host survival. Predation pressure by the toads may not be strong enough to cause the changes on their prey populations (microbivores, predators and fragmenters) in this study. They pile themselves in a monstrous shapeless clot, men and women clinging indiscriminately together, like a bunch of toads at spawning time. The toads were kept at room temperature and fed with mealworms and food pellets. His own experiments with toads and salamanders strengthened his conviction that acquired characters are inherited. Tectal mechanisms that underlie prey-catching and avoidance behaviors in toads. Worms of this species collected at the onset of the rainy season before the toads started spawning yielded immature parasites. Lymphocytes demonstrated a reduced proliferation when stimulated with the mitogen lipopolysaccharide when compared to lymphocyte proliferation of toads from a control site. We do not know anything about chromosomes or toads' hands. No mammal has been, or at present could be cloned in the way described for toads. In toads examined at the end of hibernation, fat reserves were negatively correlated with parasite intensity. See all examples of toad These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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