The idioms and explanations about waste are as follows:
Waste in vain: wasted in vain.
Waste of effort: Waste of one's energy and effort.
Prodigal son: refers to a useless child who squanders family property or a person who squanders national property arbitrarily.
There will always be a day when there is no day and there will be no day. Don’t wait until there is no time to think about the time: think: consider. When things are abundant, consider the days of scarcity, and don't regret it when you are in scarcity. It means that we should pay attention to saving and not to waste.
Cun Yin is Jing: Cun Yin: refers to a short period of time; is: a classical Chinese particle, used between the verb and the object to advance the object; Jing: strive for. Every inch of time should be fought for and not wasted. Describes that time is extremely precious
Overkill: use large materials as small materials. Improper use of metaphor is a waste of talent.
Returning every bit of money to the public: means that every bit of public money is returned to the public, without any waste or private use.
Spend money like water: squander: scatter. Squander money like dirt. Describes extreme profligacy and waste.
Cherish water when near water: Although it is close to a water source and easy to use, we also cherish water. It means that even things that are easy to obtain cannot be wasted.
Waste of resources and waste of money: division: army. Tiring the army and wasting military pay.
Teacher Mi’s salary: Teacher: It weakens the strength of the army due to long-term fatigue; Mi: Wastes. Tiring the army and wasting military pay.
Mi pays labor for division: Mi: waste: division: army. A waste of military pay and a tired army.
Reward without any cost: If the reward is appropriate, there will be no waste of money.
It is better to have a day than to have a day, and not to wait until there is no time to think about the time: Ning: would rather; plan: plan. When you have money, you should think about poverty. When you have no money, you should not still think about the time when you had money. It means that we should strictly practice economy, pay attention to reserves, and avoid waste.
Extravage: Extravagance: pay attention to ostentation. A waste of manpower and material resources just to make the scene look good.
Extremely extravagant: poor: extremely; extravagant, extravagant: extravagant. Extreme luxury, enjoy it while you can. Describes squandering, debauchery and corruption.
Harm money and labor: injury: consumption; labor: illness. It not only makes people work hard, but also wastes money.
Luxury and waste: squandering money and excessive pursuit of enjoyment.
Frugally: save, frugal: save and not waste. Describes a simple life and frugal eating and drinking.
Shi Chong Doushe: Shi Chong: a name from the Jin Dynasty. Shi Chong and Wang Kai competed extravagantly. Describe extravagance and waste.
Waste the sun and moon: in vain: in vain. Fee: Waste. Sun, month: time, time. What a waste of time.
Waste time: in vain; fee: waste; hour, day: time. What a waste of time.
Make the best use of everything: Whenever possible, make the most of everything. It means making full use of resources without wasting any.
Waste away time: throw away time in vain; time: years, time. Describes doing nothing and wasting time in vain.
Not a penny falls into the void: a metaphor for not wasting any money.
Zhang Yan sets up a show: Zhang Yan: sets a banquet. Drink and watch opera. Describes ostentation, extravagance and waste.