eg:1.It will not take you long to get your hand in at card. 你用不了多长时间就能学会打牌了. 2.How long will it take before I get well? 我还得多长时间才能复原? 3.It didn't take him long to sum up the situation. 没过多长时间他就对形势作出了判断. 4.How long did it take you to recuperate completely from your operation? 你手术后过了多长时间才痊愈? 结合例子,希望你可以掌握它们的用法~