毋臨渴而掘井 在 朱子治家格言3:宜未雨而綢繆,毋臨渴而掘井。 - YouTube 的評價 朱子治家格言3:宜未雨而綢繆, 毋臨渴而掘井 。 Watch later. Share. Copy link. Info. Shopping. Tap to unmute. If playback doesn't begin shortly, ... ... <看更多>