[請益] 請問 keep fighting 和 keep on fighting

[Boney (Boney bunny ^^)]

    請問要鼓勵別人繼續加油時,

    Keep fighting.  和  Keep on fighting.

    這兩句話, 有沒有語意上的差異呢?

    若有, 請問是差在哪裡?

    一時想不明白, 懇請高手指點, 謝謝!!

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→ dunchee: https://www.ldoceonline.com/dictionary/keep
→ dunchee: -> 2 ....
→ Boney: 謝謝樓上!! 看網頁的意思, 應該是兩者皆可囉~~ :)