Paris has always been synonymous with elegance, luxury and style. [+ with]

巴黎一直是优雅、奢华和时尚的代名词。

Going grey is not necessarily synonymous with growing old.

头发变白并不一定等于变老了。

In politics, power and popularity are not synonymous.

在政治上，权力和声望并非相依而存。