HSK 7–9 grammar · adverb
尤为
尤为 — especially (formal)
Pattern
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( ) can be left out · other words may come before, between and after
How it works
尤为 singles one item out of several as the most extreme: "especially, particularly". It is written-style and takes a two-syllable adjective. Compare 尤其, which is more general and can precede a whole clause.
Examples
安全问题尤为重要。
Ānquán wèntí yóuwéi zhòngyào.
Safety issues are especially important.
今年夏天尤为炎热。
Jīnnián xiàtiān yóuwéi yánrè.
This summer has been particularly hot.
Related

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