both意为“两个都”,在句中可用作代词、形容词或副词。
both可用作不定代词,在句中可以作主语、宾语或同位语。例如:
Both are right. 两者都对。(主语)
Both of us are good at English.我们两个都擅长英语。(主语)
I'll take both of them with me.我要把他们两个人都带去。(宾语)
both在作主语同位语时,它可放在下列几个位置:
1)位于系动词之后。例如:My two uncles are both doctors. 我的两个叔叔都是医生。
2)位于be,have,will,shall等助动词以及can,must等情态动词之后。例如:They will both visit London next week.他们两个下周要参观伦敦。
