focal

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++fo·cal /ˈfəʊkəl $ ˈfoʊ-/ adjective [only before noun]  MAINthe focal thing is the one that people pay most attention to 焦点的，受关注的 → focus This issue has now become the focal centre of interest. 这一问题现已成为关注的焦点。

Examples from the Corpus

focal• The initial focal symptoms may be very brief, or they may last longer than 30 minutes.

fo·cal adjectiveChineseSyllable  

most focal Corpus that pay people is thing one attention the the

focal
fo‧cal /ˈfəʊkəl $ ˈfoʊ-/ adjective [only before noun]
the focal thing is the one that people pay most attention to ⇨ focus:
    This issue has now become the focal centre of interest.

focalBrE /ˈfəʊkl/ 🔊NAmE /ˈfoʊkl/ 🔊 adjective [only before noun] central; very important; connected with or providing a focus 中心的；很重要的；焦点的；有焦点的