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1·The cage smelled of excrement.

这个笼子闻起来有粪便味。《柯林斯英汉双解大词典》

2·My main role was to analyze human excrement.

我的主要任务是分析人体排泄物。

3·He collects the excrement from a panda breeding center in southern China.

他从中国南方的一个大熊猫繁殖中心收集其粪便。

4·They should be especially careful around uncooked meat, domestic animals, human excrement and lake or river water.

他们应特别小心生肉、家畜、人类粪便和湖水或河水。

5·Poultries need a large amount of food and space, which is typically limited to expeditions, and they produce a lot of excrement.

家禽需要大量的食物和空间，这在远征中通常是有限的，而且它们还会产生大量的排泄物。

6·The virus is transmitted to humans by close contact with infected birds or their excrement, and cannot be passed from human to human.

该病毒通过与受感染的鸟类或其粪便的密切接触传播给人类，不能在人与人之间传播。

7·Love has pitched his mansion in the place of excrement.

爱神把他的宫殿掷在粪地。

8·How is dental excrement formed?

牙齿屎是怎么形成的？

9·Is it excrement floating in the air today?

今天空气里是飘着屎吗？

10·My main role was to analyse human excrement.

我的主要任务是分析人体排泄物。

(1)human excrement人类排泄物