His problem
问题───problem;他───he
We must have a clear understanding of the problem.───我们对这一问题必须有一个清醒的认识.
I'm quite sure they were doing the same problem.───我敢肯定他们解决的是同一问题.
I will expand on this problem next time.───我下次再详细谈这个问题.
Their unwillingness to discuss the problem is quite obvious.───很显然,他们不愿谈论这一问题.
He was stumbled by the problem.───这问题使他迷惑不解.
He perplexed me with this problem.───他用这个问题难住了我.
He stated his problem clearly.───他把问题叙述得很清楚.
That problem has beaten me.───那个问题把我难住了.