be down and out 穷愁潦倒
safe and sound安然无恙
fair and square光明磊落
Not at all没关系
fall between two stools鸡飞蛋打
Don't beat about the bush别再兜圈子了
Please don't bother请不用为此费心
as green as grass菜鸟 新手
blow hot and cold出尔反尔
slow but sure 慢工出细活
Not at home不在家
put the cart before the horse本末倒置
upset the apple-cart美梦破灭
as good as gold 乖 一言九鼎
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