It was a patchy performance.

那是一场素质不齐的演出。

《牛津词典》

Recent months, moreover, have brought particular hardships: high inflation, a patchy monsoon, a slowing economy and vanishing jobs.

此外，严重的通货膨胀，突发的季风，缓慢的经济和减少的就业，使最近的几个月的形势尤其严峻。

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Progress during the period has been spectacular, in spite of having to compete in a tough sector and a patchy track record in the past.

尽管该公司必须在一个艰难的行业进行竞争，且过去的记录也差强人意，但它在这段时期内取得了惊人的进步。

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Jones, who is forty, is tall and imposing, with a shaved head and a patchy goatee.

NEWYORKER: Greening the Ghetto

She returned to the semifinals Wednesday despite a patchy performance, beating Sara Errani 7-5, 7-5.

NPR: Sharapova Beats Errani In Key Biscayne Quarters

And yet this too is liable to be a patchy marriage, because the rivalry is so deep-seated.

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