This is a Japanese-style character form; standard Chinese writes the word as 赞.
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讃 is a Japanese / variant form of 讚. It is not used in standard written Chinese — the equivalent character is 赞 (to praise / to like, as in 称赞 'to praise', 点赞 'to give a thumbs-up').
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Seen in Japanese contexts and variant-form notes only; a Chinese reader should use 赞.
