花甲的英文：
a cycle of sixty years in traditional reckoning

参考例句：

Originally she had judged him to be in his early sixties.
原先她估计他才刚过花甲。

cycle是什么意思：
n. 循环，周期；自行车；整个系列
v.（使）循环，（使）轮转；骑自行车

Then the market cycle overtook the political cycle.
当时，市场周期超越了政治周期。

The seasons of the year make a cycle.
一年四季构成一个循环。

The pedal of a cycle is attached to a crank.
自行车的踏板与曲柄相连。

sixty是什么意思：
n. 六十，六十个
adj. 六十的

The speedometer was rocking between sixty and sixty-five.
里程计在60与65之间来回摆动。

This dictionary has sixty thousand entries.
这本字典有六万字。

He was nearing sixty.
他已经快到六十岁了。

years是什么意思：
n. 年；学年，年度；年级学生；年龄；时期；很久；一年时间

Year succeeds to year.
年复一年。

This year is a banner year for crops.
今年是个丰年。

Year after year went past.
一年又一年过去了。