dual

柯林斯词典

1. ADJ Dual means having two parts, functions, or aspects. 雙重的[ADJ n]
...his dual role as head of the party and head of state. …他作爲政黨領袖和國家首腦的雙重角色。

Everything he says has a dual meaning .
Although she had the dual advantages of wealth and beauty , she did not have a happy life .
These painkillers have the dual strength of ibuprofen and codeine , for fast and effective relief .
A product with dual action - that kills bacteria and removes stains - is really the best .
The community hall was designed for dual use, by the school during school hours and by the public at other times .