以字母 “ce” 结尾的 “practice” 是名词，以 “se” 结尾的 “practise” 是动词。名词 “practice” 有三个常见含义：“实践”、“惯例” 和 “训练”。

用法总结

1 名词 “practice” 可以指 “实践，实施”，强调 “将某事付诸实践，而不只是想法或理论”。

It sounded like a good plan but in practice, it was terrible.

The student is excited to put what she's learned into practice during the internship.

2 名词 “practice” 还可以指 “惯例，习俗”，如某个国家、地域特有的传统风俗习惯。

In the UK, it's common practice to tip taxi drivers and hairdressers.

It's not the practice here to eat pizza with a knife and a fork.

3 名词 “practice” 也能用来指 “训练，练习”，尤其指 “为提高技能而做的练习活动”。

I enjoy football practice because I love football and I see my friends.

Lily is not coming to the dance practice tomorrow.