dual是高考必考单词吗

是高考必考单词，意思是双重的，例如：

1、The piece of furniture serves a dual purpose as a cupboard and as a table.这件家具有两个用途，既作橱柜也作饭桌。

2、She has dual nationality.她具有双重国籍。

3、Rob may be entitled to dual nationality.罗布或许能拥有双重国籍。