Don't waste water when you brush your teeth.
刷牙時不要浪費水。
He wasted his pocket money on a toy he never used.
他把零用錢浪費在一個從未用過的玩具上。
We shouldn't waste food in the school cafeteria.
我們不應該在學校餐廳浪費食物。
I wasted time scrolling videos instead of doing homework.
我滑影片沒有做作業，浪費了時間。