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給生活帶來方便的事物
You can describe something as a boon when it makes life better or easier for someone.
例句
It is for this reason that television proves such a boon to so many people...
就是因為這個原因，電視才會給這么多人帶來如此大的便利。
This battery booster is a boon for photographers.
這種電池充電器是攝影工作者的好幫手。