HSK 7–9 grammar · conjunction
纵然⋯⋯,也⋯⋯
纵然⋯⋯,也⋯⋯ — even if (literary)
Pattern
+ +
( ) can be left out · other words may come before, between and after
How it works
纵然 is the most literary of the "even if" words, common in essays and older prose. Like 即使 and 即便 it takes 也 in the second clause; its register is the only real difference.
Examples
纵然千难万险,也要坚持下去。
Zòngrán qiānnán-wànxiǎn, yě yào jiānchí xiàqù.
Whatever the hardships, we must carry on.
纵然相隔千里,心也在一起。
Zòngrán xiānggé qiān lǐ, xīn yě zài yìqǐ.
Though a thousand miles apart, our hearts are together.
Related

See it in a story
In the app, 纵然⋯⋯,也⋯⋯ is underlined wherever it appears in the stories you read, and practised with sentences from them. Free.