Disappointed about the current situation, he could do nothing but put on a brave face.

虽然对现状感到不满，但他除了强颜欢笑之外别无他法。

youdao

He bragged about how brave he was.

他夸耀自己多么勇敢。

《新英汉大辞典》

Lucky for me, a lot of these brave souls have written about their journeys so that others could be inspired to do the same.

我很幸运，很多这些勇敢的灵魂记录下了他们的旅程，使得其他人(包括我)可以从中得到鼓舞，去做那样的事情。

youdao

After Faulkner, few northerners were brave enough to write about a South they did not know.

VOA: special.2010.01.03

And that's a shame when we're talking about brave men and women in our diplomatic service who served Democrats and Republicans, who represent the United States and the American people and America's interest abroad often in very dangerous parts of the world.

WHITEHOUSE: Press Briefing

We can tell them about the brave men and women who risked their lives that day to save others.

WHITEHOUSE: Share This Post

Not a lot is said about these brave women and children the majority of whom lived in the London area taking over from the English people who were evacuated to "safer" places.

BBC: WWII evacuees: Your stories