keep one's chin up 不要气馁 不要灰心 保持斗志 挺起胸膛 振作起来 是鼓励人的.她总是保持斗志.她总是昂首挺胸.eg1 Keep your chin up,stick to it.别灰心,挺起你的胸膛,坚持下去.2 Keep your chin up.Nothing is i...