The suggestion is that primitive words could have been imitations of the natural sounds which early men and women hear around them.
总觉得怪怪的,为什么还要个them呢,感觉which就可以指代了??请教老师谢谢!
老师们好,下面这个句子:The possibility that mass extinctions may recur periodically has given rise to such hypotheses as that of a companion star with a long-period orbit deflecting other bodies from their normal orbits, making some of them fall to Earth as meteors and causing widesprea...