经常有同事问我“你多久回中国休一次假？”和“你一年休多少天的假？”等问题，目前工作的这个单位有阿曼人（本地人），印度人，巴基斯坦人，埃及人，菲律宾人，印度尼西亚人，还有孟加拉人等等。
Some of my colleagues often ask me, "How often do you go back to China for a vacation?" "And" How many days do you take off in a year? The employees are from many different countries including Omani (natives), Indians, Pakistanis, Egyptians, Filipinos, Indonesians, Bangladeshis, and so on.
我的年假是60天每年，往返不超过三次。我一般每年休两次，每次一个月。据我了解，其他员工的年假是30天每年。
My annual leave is 60 days per year, leave times are up to 3 times. I usually take 2 times leave for one month each time. As far as I know, other employees' annual leave is 30 days per year.
所以就是每5个月休一次，every 5 months 每5个月。
So leave one time every 5 months.
英文里面表频率的词汇从高到低：Frequency from high to low
1. always 总是
always 这个词语表示“频率最高”，比如每次出去吃饭他总是点“大盘鸡”，非常喜欢，百吃不厌。
My mom always says everything will be OK.
我的妈妈总是说“一切都会好起来的”。
He's always punctual for every date.
每次约会他总是很准时。
2. usually 经常
usually这个词语使用频率还是很高的，比如问别人通常怎么去上班（交通方式），几点上下班，还有周末通常怎么度过等等。
What time do you usually go to bed?
你晚上通常几点休息？
She usually wears long skirts.
她通常穿长裙。
3. normally/generally 通常，正常情况下
normally open/close 常开/闭的
Generally speaking 一般来说
It's normally much warmer than this in July.
通常七月要比现在热得多。
4. often/frequently 时常，常常
as often as possible 尽可能经常地
How often do you go back to China for vacation?
你多久回中国休假一次？
Every 5 months.
每5个月一次。
所以问“多久一次”，要用到短语 How often。
5. sometimes 有时，间或
sometimes 这个词表达的频率已经相当低了，但比偶尔的频率要高。
I like to be on my own sometimes.
有时候我喜欢一个人待着。
Life seems so unfair sometimes.
人生有时似乎非常不公平。
6. occasionally 偶尔，偶然
We occasionally meet for a drink after work.
我们下班后偶尔相聚小酌。
It wouldn't hurt you to help with the housework occasionally.
你应该偶尔帮忙做做家务。
7. seldom 不常，很少
seldom or never 很少或从不，表示某种情况或行为发生的频率非常低或几乎没有。
He was in love with her, although a man seldom puts that name to what he feels.
他爱上了她，虽然一个男人很少用这个词来形容他的感受。
Barking dogs seldom bite.
善吠的狗很少咬人。
8. hardly ever/rarely 几乎不，表示频率非常低，几乎没有发生的可能性。
rarely if ever 几乎从不：非常罕见或几乎不会发生的意思。
People hardly ever keep their resolutions, though they make them.
人们虽然下了决心，但几乎从不遵守。
9. never 从不，绝不
Never give up.
永不言弃，决不放弃。
He has never been abroad.
他从未出过国。
I will never ever forget it.
我永远不会忘记它。
“ever” 在这里用来增强语气，表示强调。
