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      difficult problem可數(shù)嗎
      
            
            
      回答
      
            
      
                
                瑞文問答
                
      2024-10-22
            
      
            
      
                difficult problem可數(shù)的。
      difficult ：adj. 困難的; 費(fèi)力的; 難做的; 難解的; 問題很多的; 充滿艱難困苦的; 麻煩的; 難以討好的; 難以取悅的; 不愿幫助的。
      problem：n. 問題; 難題; 棘手的問題; 困難; 邏輯題; 數(shù)學(xué)題。
            
      
            
            
      擴(kuò)展資料
      
            
      　　How to improve the quality of products was a difficult problem to him.
      　　如何提高產(chǎn)品質(zhì)量對(duì)他來說可是個(gè)難題。
      　　She is working at a difficult problem in mathematics.
      　　她在做一道數(shù)學(xué)難題。
      　　How to grow rice in a dry area is a difficult problem.
      　　在干旱地區(qū)種水稻可是一個(gè)難題。
      　　When you come across a difficult problem, think about it by yourself first.
      　　遇到難題的時(shí)候先自己想想。
      　　The student decided to work out the difficult problem by himself.
      　　這個(gè)學(xué)生決心獨(dú)自解決這道難題。
      　　Air pollution is a difficult problem for environmental protect.
      　　城市大氣污染問題是環(huán)境保護(hù)的一項(xiàng)難題。