YOU SAID:

this does, indeed, make sense

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これは確かに意味をなさない

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This certainly makes no sense

INTO JAPANESE

これは確かに意味がない

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This certainly is meaningless

INTO JAPANESE

これは確かに無意味です

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This is indeed meaningless

INTO JAPANESE

これは本当に無意味です

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This is really pointless

INTO JAPANESE

これは本当に無意味

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This is really meaningless.

INTO JAPANESE

これは、本当に無意味です。

BACK INTO ENGLISH

This is really pointless.

INTO JAPANESE

これは、本当に無意味です。

BACK INTO ENGLISH

This is really pointless.