that any scientist examines any claim

检验任何理论一样
by making predictions and testing them.

用预测和实验进行了检验
And this makes some interesting predictions.

当中一些预测很有意思
It suggests the timing of onset and offset of pregnancy sickness,

研究提出孕期晨间不良反应的
of morning sickness,

开始和结束时间
should correspond to the period of maximal vulnerability

应该和受精卵或者胎儿在发育过程中
on the part of the developing embryo or fetus.

最脆弱的时期吻合
Suggested the types of foods avoided

并且孕妇不吃的这些食物种类
should correspond to those sorts of foods

应该也就是
that were most deadly for the fetus

对婴儿伤害最大的食物
and that were deadly for the fetus

这些食物在人类胎儿进化期间
during the periods where humans evolved.

就是有害的