Suspicion and jealousy, however ill-founded, can poison a marriage.是什么意思？

Suspicion and jealousy, however ill-founded, can poison a marriage.

怀疑和忌妒，不管多么站不住脚，都可能毒害婚姻。

suspicion

n. 怀疑，嫌疑，疑心，〈口〉一点儿；vt. 怀疑；

例句
He hailed this week's arms agreement but in the same breath expressed suspicion about the motivations of the United States.
他为本周达成的武器协议而欢呼，但同时又对美国的动机表示怀疑。

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。

jealousy

n. 妒忌，猜忌，戒备，小心提防；

例句
That kind of jealousy doesn't bother me...
那种嫉妒我并不在意。

however

adv. 不管到什么程度，无论如何，然而，可是；conj. 不管怎样；

例句
The fact remains that inflation, however you measure it, is unacceptably high...
必须承认，无论怎么衡量，通货膨胀率都高得难以接受。

can

aux. 能够，可以，有机会；n. 金属罐，一听，金属容器；vt. 将…装罐保存，炒…鱿

例句
When I listen to her play I can hear a new Nigel Kennedy.
从她的演奏中我听出了新一代的奈杰尔·肯尼迪。

poison

n. 毒药，酒，极糟的食物，极有害的思想（或心情等）；vt. 毒死，污染，放毒于，对…有不良影响；adj. 有毒的；

例句
Markov died after being struck by a poison dart.
马尔科夫身中毒镖而亡。

marriage

n. 结婚，婚姻生活，密切结合，合并；

例句
Rosie's idyllic world came to an abrupt end when her parents' marriage broke up...
父母婚姻的破裂使得罗茜田园诗般美好的世界陡然画上了句号。