humans have bred hybrids plants that can withstand harsher climates or produce larger or better-tasting fruit and vegeta
问题描述：
humans have bred hybrids plants that can withstand harsher climates or produce larger or better-tasting fruit and vegetables这句话中的that起什么作用?
答
that表示一个固定方位同zhis 一样,作定语从句中的主语,定plants引导定语从句是必须做从句里的成分在这里作的是主语.that也可以在定语从句里做宾语.这个时候可以省略.that相当于which,用来修饰plants,在从句 can with...