upon

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++up·on /əˈpɒn $ əˈpɑːn/ ●●● S3 W2 preposition formal  1  CONNECTED WITHused to mean ‘on’ or ‘onto’ 在…上面〔与 on 或 onto 的意思相同〕 an honour bestowed upon the association 授予该协会的荣誉 We are completely dependent upon your help. 我们完全依赖你的帮助。 Brandon threw him upon the ground. 布兰登把他摔倒在地。2  if a time or event is upon you, it is about to happen 即将来临 Winter is almost upon us. 冬天即将来临。3  layer upon layer/mile upon mile etc formal used to emphasize that there are a lot of layers, miles etc 一层又一层/一英里又一英里等〔用于强调〕 mile upon mile of golden sand 绵延数英里的金色沙滩 → once upon a time at once1(14), → take it upon yourself to do something at take1(27)

Examples from the Corpus

upon• Her friends look upon her with envy.• A dark cloud descended upon the valley.Origin upon (1100-1200) up + on

up·on prepositionChineseSyllable  

‘on’ mean to or ‘onto’ used Corpus

upon
up‧on S2 W1 /əˈpɒn $ əˈpɑːn/ preposition formal1. used to mean ‘on’ or ‘onto’:
    an honour bestowed upon the association
    We are completely dependent upon your help.
    Brandon threw him upon the ground.
2. if a time or event is upon you, it is about to happen:
    Winter is almost upon us.
3. layer upon layer/mile upon mile etc used to emphasize that there are a lot of layers, miles etc:
    mile upon mile of golden sand
⇨ once upon a time at once¹(14), ⇨ take it upon yourself to do something at take¹(27)

🔑 uponBrE /əˈpɒn/ 🔊NAmE /əˈpɑːn/ 🔊, /əˈpɔːn/ 🔊 preposition🔑 (formal, especially BrE) = on ◆The decision was based upon two considerations. 这一决定基于两种考虑。🔊🔊 HELP Although the word upon has the same meaning as on, it is usually used in more formal contexts or in phrases such as◆once upon a time and◆row upon row of seats * upon 与 on 同义，但通常用于较正式的场合或 once upon a time 和 row upon row of seats 等短语中。… upon… used to emphasize that there is a large number or amount of sth （强调数目或数量大）◆mile upon mile of dusty road绵延数英里尘土飞扬的道路◆thousands upon thousands of letters成千上万封信件●(almost) uˈpon youif sth in the future is almost upon you, it is going to arrive or happen very soon 近在咫尺；即将来临◆The summer season was almost upon them again. 转眼间他们又要过夏天了。🔊🔊●ˌonce upon a ˈtimeused, especially at the beginning of stories, to mean 'a long time in the past' （用于故事的开头）从前，很久以前◆Once upon a time there was a beautiful princess. 从前，有一位美丽的公主。🔊🔊

🔑 uponBrE /əˈpɒn/ 🔊NAmE /əˈpɑːn/ 🔊, /əˈpɔːn/ 🔊 preposition🔑 (formal, especially BrE) = on ◆The decision was based upon two considerations. 这一决定基于两种考虑。🔊🔊 HELP Although the word upon has the same meaning as on, it is usually used in more formal contexts or in phrases such as◆once upon a time and◆row upon row of seats * upon 与 on 同义，但通常用于较正式的场合或 once upon a time 和 row upon row of seats 等短语中。… upon… used to emphasize that there is a large number or amount of sth （强调数目或数量大）◆mile upon mile of dusty road绵延数英里尘土飞扬的道路◆thousands upon thousands of letters成千上万封信件●(almost) uˈpon youif sth in the future is almost upon you, it is going to arrive or happen very soon 近在咫尺；即将来临◆The summer season was almost upon them again. 转眼间他们又要过夏天了。🔊🔊●ˌonce upon a ˈtimeused, especially at the beginning of stories, to mean 'a long time in the past' （用于故事的开头）从前，很久以前◆Once upon a time there was a beautiful princess. 从前，有一位美丽的公主。🔊🔊