渇に臨みて井を掘る かつにのぞみていをほる to fail to make timely preparations; to not dig a well until one is thirsty exp v5r Advanced ➥
渇に臨みて井を穿つ かつにのぞみてせいをうがつ かつにのぞみていをうがつ to fail to make timely preparations; to not dig a well until one is thirsty exp v5t proverb Advanced ➥