Joy and sorrow are next-door neighbours.是什么意思？

Joy and sorrow are next-door neighbours.

是喜是忧难以分辨。

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。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

sorrow

n. 悲痛，悔恨，惋惜，伤心事；vt.& vi. 悲痛，遗憾；

例句
As he looked at Katherine, great sorrow clouded his eyes.
他看着凯瑟琳，满眼忧伤。

are

vi. （用于第二人称单复数现在时，第一、三人称复数现在时）是；n. 公亩（等于100平方米）；

例句
We are scared to abandon ourselves to our feelings in case we seem weak or out of control.
我们不敢放纵自己的情感，以免显得太过软弱或缺乏自制。

neighbours

n. 邻居( neighbour的名词复数 )，邻近的人[物]，邻国，世人；

例句
Horrified neighbours rushed to his aid as he fell.
他摔下来时，惊恐的邻居们赶忙冲过去救他。