it will all come out in the washspoken a) used to tell someone not to worry about a problem because it will be solved in the future 总会有办法的,问题总会解决的〔用于叫某人不要担心〕
b) used to say that the truth about something will be known in the end 总会水落石出,总会真相大白
→ it will all come out in the wash at wash2(3)