朱莉娅：电子商务只有一个问题。

Julia: E-commerce has only one problem.

youdao

只有一个问题：经商怎样练习？

Just one problem: How do you practice business?

youdao

这样形成的数据库模式只有一个问题。

This proposed database schema has just one problem.

youdao

So another issue here is, I just assumed that there were two candidates.

另一个问题是,我假设只有有两个候选人

耶鲁公开课 - 博弈论课程节选