在中文中，我们同一个意思有多种表达，英文也一样。
"有时"除了“sometimes”，你还知道可以怎么说吗？
1occasionally
He is a couch potato, but he plays basketball occasionally.
他是个懒癌患者，但偶尔会去打篮球。
2once in a while
He's a good employee, although he's late once in a while.
尽管他偶尔会迟到，但他依旧是个好员工。
3now and then
My boyfriend picks me up now and then.
我男朋友偶尔来接我。
4from time to time
I usually don't eat meat, but I do like to have a hamburger from time to time.
我通常不吃肉，但是偶尔吃个汉堡真的是爽翻了！
5every so often
I love Chinese food, but every so often it's nice to have British food.
我特别喜欢中餐，但是偶尔吃顿英国料理也是不错的。
6once in a blue moon
The boss takes us out for dinner once in a blue moon.
老板只是极其偶尔地请我们吃一顿饭。
PS: once in a blue moon 频率比之前几个用法更为小一些，表示“极其偶尔，极其罕见”。
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