健身的英文：
fitness
keep fit
preserve health

参考例句：

fitness equipment;fitness centers.
健身器材;健身中心

The government advocated national sports movement will give an impetus to the market consumption
政府全民健身工程牵头市场消费

There's tons of great fitness information out there tailor it to fit you.
杂志上关于健身的有益信息非常之多，选择那些适合你的。

You've been working out regularly for quite a while, but you're nowhere near1 your fitness goals.
你经常做健身运动已有相当长一段时间了，但是你的健身目标仍然遥不可及。

Keep a food and fitness journal for a month. Then analyze it for negative patterns.
每天记录你的饮食和健身情况，坚持一个月。然后分析这份日记，以找出你在健身活动和饮食这两方面有哪些做法其实并不健康。

Fitness(或body- building) equipment; exerciser
健身俱乐部，健身器

Free use of Fitness Centre.
免费使用健身中心

"A little labour, much health"
适量劳动健身大有益

This is a gymnasium of our community.
这是我们社区的健身俱乐部。

Sorry, exercise circle is sold out.
对不起，健身圈卖完了。

fitness是什么意思：
n. 健康；适合，适当

This cap fits you better.
这顶帽子对你更合适。

To join by or fit into a gain.
在腰槽内连接或配合

This car is fitted with radial tyres.
这辆车配有子午线轮胎。

keep是什么意思：
v. 保持，处于；继续，重复；使耽搁；抚养；履行
n. 生活费，生活必需品

That news will keep.
那个消息留待以后再宣布。

They keep a shop.
他们经营一家商店。

How are you keeping?
你最近还好吧？

fit是什么意思：
v. 合身；适合于；安装；使适应
adj. 适合的；健康的；相称的
n. 适合；合身；突发；昏阙

This cap fits you better.
这顶帽子对你更合适。

To join by or fit into a gain.
在腰槽内连接或配合

This car is fitted with radial tyres.
这辆车配有子午线轮胎。