buck up
精神振奋, 奋发, 欢欣鼓舞
例句与用法：
She knew with a change of scene she would soon buck up.
她知道环境一改变她将快乐起来。
Buck up! We're going to be late.
快点儿! 我们快要晚了。
Buck up! Things aren't as bad as you think.
振作起来！事情不像你想象的那么糟。
An extraordinarily large order bucked up all the staff.
一份特大订单使全体员工欢欣鼓舞。
词形变化：
名词: bucker | 动词过去式: bucked | 动词过去分词: bucked | 动词现在分词: bucking | 动词第三人称单数: bucks |