Back at the beach, business owners are in dilemma.

回到海滩，企业主们左右为难。

There are 28 kinds of effective inference forms in dilemma.

二难推理共有28种有效推理形式。

[Abstract] ] Up to now, the publishing science in China is still in dilemma.

摘要 ： [本文认为出版学应该而且必须是一级学科。