1·She made a valiant attempt not to laugh.
她试图强忍住不笑出来。
—— 《牛津词典》
2·A good time to practice humility is when you're tempted to criticize other people, even when they're making a valiant attempt to adopt an agile method.
当你想批评别人，尤其是当他正努力采用敏捷方法的时候，你就该学习如何保持谦虚的心态 了。
3·So Mr Rogers's attempt to analyse his life story is a valiant bid to do what is clearly needed.
所以罗杰斯先生试图分析他的人生故事，这是一次勇敢的尝试。