1. The control by a single gene of several distinct and seemingly unrelated phenotypic effects. 
   多效作用受具有若干独特的、看似与表现效果不相关的单个基因的控制
2. Of, relating to, or being an allele that produces the same phenotypic effect whether inherited with a homozygous or heterozygous allele. 
   显性的不管遗传组合等位基因还是异合等位基因都产生相同表现型结果的等位基因的
3. Any of a group of nonallelic genes, each having a small quantitative effect, that together produce a wide range of phenotypic variation. 
   多基因一种非等位基因，每一个基因都有很小量的效果，这些效果合在一起产生出很多种表现型变异
4. Change methods; change sides. 
   转变方法；转换立场
5. Anticipate a weather change 
   预测天气要变

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