experience名词形式可数吗

　　例句：

　　She exercises two or three times a week.

　　她一周锻炼两三次。

　　Let's start off with some gentle exercises.

　　我们先来做点强度小的练习。

　　These exercises will help to keep you supple.

　　这些锻炼项目有助于你保持身体的柔韧性。

　　It is important never to overdo new exercises.

　　重要的是，千万不要过度进行一项新的锻炼。