基本解释适应同根派生 英汉例句Many are neither adaptations nor the result of selection at all.其实，有许多根本就不是适应，也不是选择的结果。They also have a number of special physical adaptations that help them thrive in desert conditions.它们自身的改变也适应了沙漠环境，才得以繁衍生存。