我们必须坚持真理，而真理必须旗帜鲜明。

We must firmly uphold the truth, and truth requires a clear-cut stand.

在这个问题上，我们一定要旗帜鲜明。

We must have a clear-cut stand toward this matter.

要旗帜鲜明地反对形形色色的保护主义，坚决倡导和支持自由贸易；

We need to take a firm position against all forms of protectionism and strongly advocate and support free trade.

推进任何一项工作，只要我们党旗帜鲜明了，全党都行动起来了，全社会就会跟着走。

In any initiative we introduce, the public will stand behind the CPC as long as its banner is clear and its members step into action.

在理论上对“人”探讨最多的是周作人，他第一个旗帜鲜明地提出了“人的文学”口号。

Zhou Zuoren had the most articles on the "person" in theory. He was the first person made the slogan of "the literature of man ".