Human (background, right) and bird (background, left) flu viruses combine to make worse symptoms.

人(背景，右)与禽(背景，左)流感病毒结合会导致更为严重的症状。

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Participants in one study when asked to think about the reasons for their decisions went on to make worse choices ( Wilson & Schooler, 1991).

试验者在一个研究中被要求去考虑他们决策的种种理由时，他们做了更糟的决策（Wison&Scholler,1881)。

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He warned that to negate the results of elections would only make things worse.

他警告说否定选举结果只能使事态更加恶化。

《柯林斯英汉双解大词典》

Experts also say keeping stress to yourself can make problems worse.

VOA: special.2009.03.24

I have a chart here, which I'll make available to, with a listing of nations with worse literacy record in the world.

现在我手中有一张表格，这个我会公开给大家，这里列出了世界上,具有较差文化素养的一些国家。

麻省理工公开课 - 媒体、教育、市场课程节选

Now, you know how to make women do worse on math tests too, like that, and this has a demonstrative effect.

你们也知道怎么让女同学考数学考不好，像这样，这样的作用非常显易而见。

耶鲁公开课 - 心理学导论课程节选

It gets my very dangerous rating by allocating over 89% of its value to neutral-or-worse-rated stocks, and to make matters worse, nails investors with total annual costs of 6.49%.

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To make matters worse, consumers lack expertise in health care, and make their health care purchases on the advice of their chosen doctors and specialists, who not only also have no incentive to control costs, but, rather, have a direct financial interest in them spending more.

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To make things worse, the high, 80-milligram dose of the drug will probably not make it to pharmacy shelves.

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