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1·That work won't take you long-it's a piece of piss.

这工作花不了你多长时间—跟撒泡尿一样容易。

2·Boys come swaggering out of exams declaring it to have been a piece of piss.

男孩子们会大摇大摆地走出考场，说这不过是小菜一碟。