Celebrate on the 15th of the first month
十五───fifteen;正月───the first month of the lunar year
In its heyday , the company ran trains every fifteen minutes.───公司在最兴隆时期每隔十五分钟就开出一列火车。
We marched fifteen miles to Yadkin River.───我们前进了15英里，来到亚德金河畔。
Fifteen minutes later he was undressed and in bed.───15分钟后他便穿了睡衣躺在床上了。
It's fifteen thirty hours.───现在是15点30分.
She counted out fifteen pence and passed it to the salesgirl.───她数出15个便士交给女店员.
Three fives are fifteen.───三个五等于十五。
There is a time lag of about fifteen years.───时间上有一段约15年的间隔.
I don't believe in long interviews. Fifteen minutes is plenty.───我不认为面试该花很长时间,15分钟足够了.
Fifteen thousand bird watchers visit annually.
The levels of trade union and political activism in this country have greatly declined in the past fifteen years.
The wind breezed up to fifteen knots.
until I was at least fifteen.
She sauntered in fifteen minutes late.