Most are mice and rats.

其中大多是小鼠和田鼠。

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The hotel has been ordered to close because it is overrun by mice and rats.

这家旅馆因为到处都是老鼠，已经被勒令关闭。

《柯林斯英汉双解大词典》

Similar evidence appeared in songbirds and rats around the same time, and since then, researchers have built up an impressive catalogue of animal lateralisation.

与此同时，在鸣禽和老鼠身上也发现了类似的证据，从那时起，研究人员已经建立了一个令人印象深刻的动物偏侧性目录。

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Mice and rats are commonly used to test new medicines.

VOA: special.2009.05.05

They might say, "Humans and rats aren't different at all.

他们会说，“人和老鼠根本没有区别。

耶鲁公开课 - 心理学导论课程节选

so recording from the brains of mice and rats

就是观察记录实验鼠大脑的反应。

成功的医学研究 - SpeakingMax英语口语达人

The children of cities like Mumbai should have the opportunity to experience wildlife other than crows, pigeons and rats.

FORBES: The Green Movement's People Problem

Humans have been the most successful species on the planet (roaches and rats have done well, too).

FORBES: Human Ingenuity: A 100,000-Year-Old Story

In one case, the suspects made fake mutton from foxes, mink and rats after adding chemicals, state media said.

BBC: China arrests hundreds over fake or tainted meat