fitness动词形式是: fit
反义词是:weakness
fitness作名词使用意思是健身;健康;健壮;适合(某事物或做某事);
例句
I'm taking the first tentative steps towards fitness.
我试探性地开始实施健身计划。
Shoot for a year or two, not a few weeks. There are no instant fitness fixes, no matter what that website or magazine promises.
无论哪些网站和杂志怎么承诺，都不存在快速健身的方法。
