We became scientists and tested concoctions of milk, orange juice, and mouthwash.是什么意思？

We became scientists and tested concoctions of milk, orange juice, and mouthwash.

我们是科学家,尝试牛奶 、 橙汁和漱口水的混合物.

we

pron. 我们，咱们，笔者，本人，朕，人们；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

became

v. 变为，成为（ become的过去式 ）；

例句
It became very clear that the incident was not just an aberration, it was not just a single incident.
事实已经很清楚，这件事不是偶发的，它并不是一起孤立的事件。

Scientists

n. 科学家( scientist的名词复数 )；

例句
British scientists have brought computer science to bear on this problem.
英国的科学家们已经应用计算机科学来解决这个问题。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

tested

adj. 经过试验的，经受过考验的，经验定的，检验无病的；v. 测验( test的过去式和过去分词 )，考查，考验，勘探；

例句
He had the material tested and sent along the results.
他对材料做了检验并送出了检验结果。

concoctions

n. 编造，捏造，混合物( concoction的名词复数 )；

例句
We bearrived scientists and tested concoctions of milk, orange juice, and mouthwash.
咱们是科技家,尝试牛奶 、 橙汁和漱口水的混合物.

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

milk

n. 奶，乳液，母乳；vt. 挤奶，榨取；

例句
Soya milk can cause allergic reactions in some children.
有些孩子会对豆浆过敏。

orange

n. 桔子，橙子，[植]桔树，橙色，桔色，橙汁饮料；adj. 橙色的，橘色的，桔红色的；

例句
The sun has already set, leaving the sky afire with orange and green light.
太阳已经落山，但天空中还映照着如火般橙绿相间的余晖。

juice

n. 果汁，肉汁，胃液；

例句
I was flicking idly through a newspaper while awaiting the arrival of orange juice and coffee...
我一边无所事事地翻着报纸，一边等着我点的橙汁和咖啡。

mouthwash

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例句
In addition, flossing regularly and using a good mouthwash is also recommended.
此外, 还推荐你定期使用牙线和挑选一把好牙刷.