难题

In sentences Pinyin

如何rú hé提高tí gāo工作gōng zuò效率xiào lǜ是shì我们wǒ men现在xiàn zài要yào面临miàn lín的de难题nán tí。如何rú hé提高tí gāo工作gōng zuò效率xiào lǜ是shì我們wǒ men現在xiàn zài要yào面臨miàn lín的de難題nán tí。The challenge we are going to face is how to increase work efficiency. #2442099

他tā擅长shàn cháng解答jiě dá数学shù xué难题nán tí。他tā擅長shàn cháng解答jiě dá數學shù xué難題nán tí。He is good at solving complicated mathematical problems. #3076567

他tā正在zhèng zài思考sī kǎo这个zhè ge难题nán tí。他tā正在zhèng zài思考sī kǎo這個zhè ge難題nán tí。He's thinking about this difficult problem. #3702568