来自董聪的问题
Fewstudentscanunderstandthesentenceuntilit()twiceorthreetimes.AexplainsBisexplainedCwillbeexplainedDhasexplained.请大师说明理由
Fewstudentscanunderstandthesentenceuntilit()twiceorthreetimes.
AexplainsBisexplainedCwillbeexplainedDhasexplained.请大师说明理由

