Definition
To choose to be overly cautious rather than taking a risk.
宁可过于谨慎，也不要冒险犯错。
Although we expect only ten guests, I've erred on the side of caution and prepared fifteen meals.
虽然我们预计只有十位客人，但我宁可过于谨慎，准备了十五份餐点。
The weather forecast said it might rain, so we erred on the side of caution and cancelled the picnic.
天气预报说可能会下雨，所以我们宁可过于谨慎，取消了野餐。
Since we weren't sure if he would attend, I erred on the side of caution and prepared a speech for him.
因为我们不确定他是否会出席，所以我宁可过于谨慎，为他准备了演讲稿。