A bad result is sure to throw a spanner in the works.

糟糕的成绩肯定会坏事的。

柯林斯例句

If the girl is intending to many John , his mother will put a spanner in the works.

如果那个姑娘打算同约翰结婚, 约翰的母亲就要加以阻挠.

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Let's get this finished before the boss comes along and throws a spanner in the works.

我们把这个弄完 吧,别等老板来了从中作梗.

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