年假的英文：
vacation or holidays for the lunar New Year period
paid vacation
annual leave

参考例句：

"If I use two of my pay vacation days now, I 'll have ten day off in a row. "
如果我用掉两天的年假,就有十天连假了

vacation是什么意思：
n. 休假；假期
v. 度假

To leave;vacate.
离开；撤出

An idyllic vacation in a seashore cottage.
在海边的小屋度过的田园诗般的假日

They were spending a vacation at the beach.
他们正在海滨度假。

lunar是什么意思：
adj. 月亮的，月球的；阴历的；银的；微亮的

Moon car (or crawler); lunar rover; lunar roving vehicle; moonbuggy
月球车

This is a calendar based on both lunar and solar cycles.
这是基于日月周期的历法。

Otherwise the daily mean is perturbed appreciably by the lunar constituents
否则，日平均值就会明显地受到太阳分潮的干扰。