常見例句權(quán)威例句He is the author of best-selling books such as Nixon, Undaunted Courage, and Citizen Soldiers.FORBES: Old Soldiers Never LieThey join an incredibly elite list of women and men, and a long history filled with ordinary Americans doing extraordinary things -- men and women of undaunted courage, uncommon resolve, and a stubborn perseverance in the face of unfathomable challenge.WHITEHOUSE: Vice President Biden Honors Flight 93 Memorial 返回 undaunted courage