...tears of joy.是什么意思？

...tears of joy.

喜悦的泪水

tears

n. 眼泪( tear的名词复数 )，破洞，裂口，裂缝；v. 撕( tear的第三人称单数 )，（使）分裂，撕碎，扯破；

例句
Why do apparently sane people go through all the blood, sweat, tears and heartache involved in getting a PhD?
为什么那些看起来神志正常的人会拼了命地要拿到一个博士学位？

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

joy

n. 高兴，喜悦，喜悦，成功；

例句
She had given him the only joy his arid life had ever known.
她为他枯燥无味的生活带来了从未有过的乐趣。