keynote
UK ['ki:.nəʊt] US [-noʊt] noun countable
■the most important or most emphasized part of something 要旨，主题，基调•This issue has become the keynote of the election campaign.这问题已成为竞选活动的主题。 •a keynote address/speech/speaker (= an important talk/speaker at a formal meeting)主要演说／发言／发言者 |