risk reduction的用法和樣例：
例句
- Owning a cat can reduce the risk of heart attacks and strokes by more than a third, researchers have found.
研究人員發現，養貓能使患心臟病和中風的風險降低三分之一以上。 - The participants' responses to dietary questionnaires showed that as intake of arious foods went up, the risk of lier cancer went down.
受試者回答飲食問卷，結果顯示隨著飲食的多樣化程度提高，肝癌的發病風險降低。
