参考になる， さんこうになる
1. to serve as a reference, to provide useful information, to be helpful, to be informative, to be instructive
tbd
拗音（ゃ ゅ ょ）と促音（っ）の出し方も、加えていただけると参考になるかもしれません。
tbd
I think it might be useful if you could add how to output the diphthongs (with small ya/yu/yo) and geminate consonants (with small tsu).
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私はハーブの栽培に熱中しており、あなたのホームページはとても参考になります。
tbd
I am absorbed in growing herbs and your Web pages are a great help to me.
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Ａ社のアニュアルレポートは参考になる。
tbd
A Ltd.'s annual report is worth having a look at.
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