1·The quagga was a strikingly beautiful variant of the zebra.
白氏斑马是一种极其美丽的斑马变种。
—— 《柯林斯英汉双解大词典》
2·A variant form of the EDAR gene is very common in East Asians and Native Americans, and is probably the reason that these populations have thicker hair than Europeans or Africans.
一个EDAR基因的变种形式在东亚人和美洲原住民中非常普遍，可能是这些人口拥有比欧洲人或非洲人更厚的头发的原因。
3·Competing theories place them either as an archaic variant of our own species, Homo sapiens, with whom we interbred, or as a separate species altogether.
竞争理论将它们作为远古时我们的祖先——智人的一种变种，智人与他们杂交，或者是一个单独的物种。
4·We can also say that once most people have been infected by swine flu and become immune, a variant that can beat that immunity will replace the current strain.
我们还可以确定的是，一旦大部分人群感染猪流感并获得免疫力，疾病的变种将会打破目前的免疫性并成为当下的压力。
5·Assuming you created such a model, let's say that you now create a process variant.
假如你创建了这样一个模型，我们就说你现在创建了一个过程的变种。