keen on
keen on — 片語動詞
- keen onbase form
- keens on3rd person singular
- keening on-ing form
- keened onpast simple
1. to like something a lot or to be very interested in it, wanting to spend time do
熱愛；喜愛
對某事物有強烈興趣或喜愛
to like something a lot or to be very interested in it, wanting to spend time doing it or learning about it
Daniel is keen on photography and takes his camera everywhere he goes.
Daniel 非常熱愛攝影，到哪裡都帶著相機。
be keen on + noun (photography)
Aylin's daughter is keen on swimming and practises every afternoon after school.
Aylin 的女兒很喜歡游泳，每天放學後都去練習。
be keen on + -ing form (swimming)
Gabriel isn't very keen on spicy food, so he orders mild dishes when eating out.
Gabriel 不太喜歡辣的食物，所以外出用餐時都點清淡的菜。
The children are keen on trying the new playground equipment at the park.
孩子們很喜歡去試試公園裡的新遊樂設施。
- fond of
similar meaning but slightly less intense; can sound old-fashioned
- into
informal; used mainly in casual conversation ('He's really into photography')
- crazy about
more intense and informal; suggests strong enthusiasm
- indifferent to
neutral lack of interest, without negative emotion
- not keen on
the direct negative form, for mild dislike or disinterest
文法句型
be keen on + noun / -ing
用法筆記
Frequently used in negative constructions ("not very keen on") to express a mild lack of interest rather than strong dislike.
常見錯誤
2. to be very attracted to someone and hope to start a romantic relationship with t
迷戀；有意思
對某人懷有浪漫興趣（非正式、英式）
to be very attracted to someone and hope to start a romantic relationship with them
Rodrigo has been keen on Aylin since they met at cooking class last spring.
Rodrigo 自從去年春天在烹飪課認識 Aylin 後，就一直很迷戀她。
be keen on + person (romantic interest, British informal)
Tara suspected her new colleague was keen on her because he smiled at her often.
Tara 懷疑她的新同事對她有意思，因為他經常對她微笑。
Quan asked his sister if she was keen on anyone at school this year.
Quan 問妹妹今年在學校有沒有喜歡的人。
Inês realised her cousin's roommate was keen on her after he asked for coffee.
Inês 發現她表哥的室友對她有意思，因為對方邀她去喝咖啡。
- attracted to
more direct and neutral; works in both British and American English
- sweet on
old-fashioned British informal; same meaning but dated
- interested in
the standard American English alternative for romantic interest
- not interested in
direct opposite; neutral in tone
文法句型
be keen on + person
用法筆記
This romantic sense is primarily British and informal. In American English, speakers more commonly say 'interested in' someone or 'have a crush on' someone. The phrase often leaves room for uncertainty — it suggests the speaker suspects attraction rather than stating it as a confirmed fact. Commonly used in present perfect ('has been keen on') and simple past ('was keen on').
常見錯誤
3. to be very eager or excited about doing something, especially an activity or exp
熱衷；渴望
對即將做的事充滿熱情與期待
to be very eager or excited about doing something, especially an activity or experience that is planned or about to happen
Mathieu is keen on joining the hiking trip to the mountains next weekend.
Mathieu 非常熱衷於參加下週末的登山活動。
be keen on + -ing (planned activity)
The students were keen on hearing the author speak at the school book fair.
學生們很渴望在書展上聽到那位作家演講。
Baraka is keen on learning Mandarin before his company transfers him to Taipei.
Baraka 很想學中文，因為公司要派他去台北工作。
Kenji is keen on visiting the science museum during his trip to London next month.
Kenji 很期待下個月去倫敦時參觀科學博物館。
- excited about
very similar in meaning; perhaps slightly stronger in emotional tone
- eager to
followed by infinitive ('eager to join') rather than -ing; more formal
- enthusiastic about
more formal; works in written and professional contexts
- reluctant to
suggests unwillingness rather than mere lack of interest
文法句型
be keen on + -ing (activity about to happen)
用法筆記
Distinguish from sense 1: sense 1 (LIKE GREATLY) describes a general, ongoing interest ("keen on photography"), while this sense (ENTHUSIASTIC ABOUT) focuses on eagerness to take part in a specific upcoming event or activity. The object is usually a dynamic -ing form or a noun describing an event, not a static noun for a general topic.