优势的英文是superiority。
例句：
1、主队再进一球从而奠定了优势。
The home side rubbed in their superiority with a further goal.
2、美国需要在军力上具有3比1的优势才能确保进攻胜利。
The US will need a three-to-one superiority in forces to be sure of a successful attack.
3、我们有空中优势。
We have air superiority.
4、海上优势已经转到我们这边了。
The balance of maritime superiority has tipped in favor of us.
5、在布尔溪，李轻松展示了他麾下军队的优势。
At Bull Run, Lee easily demonstrates his force's superiority.
小熊de爱
