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1·Because these things are unpaired, we have already seen how unpaired electrons play a role in the Stern-Gerlach experiment.

因为这些事物都是未成对的，我们已经发现在 Stern-Gerlach 实验中，未成对电子扮演怎样一个角色了。

2·The country needs new leadership if she is to play a role in future development.

该国要在未来的发展中发挥作用的话，她就需要新的领导班子。《柯林斯英汉双解大词典》

3·Nobody can play a role in protecting the earth.

没有人能保护地球。

4·I'll continue to play a role in passing the ancient skill on.

我将继续发挥作用，将这一古老的技能传承下去。

5·Jenny is fond of singing and dancing and she wants to play a role in a music video.

珍妮喜欢唱歌和跳舞，她想在音乐视频中扮演一个角色。

6·We sincerely hope that WWF can play a role in protecting this endangered species.

我们真诚地希望世界自然基金会能在保护这个濒危的野生物种中发挥作用。

7·A new study suggested that our short-term memory also may play a role in appetite.

一项新的研究表明，我们的短期记忆也可能对食欲产生作用。

8·Any or all these teams can play a role in creating or avoiding digital deception.

这些团队论是任何一个还是全部一起，都能在制造或避免“数字诈骗”方面发挥重要作用。

9·I realize we're supposed to research food-born bacteria, but food packaging must play a role in all of that, right?

我意识到我们应该研究食物糜烂后滋生的细菌，但是食物包装应该起到了很大的作用，对吧？

10·Macrophages are cells that play a role in the response of the immune system of mice and other mammals to invasive organisms such as bacteria.

巨噬细胞是在小鼠和其他哺乳动物的免疫系统对细菌等侵入性生物的反应中发挥作用的细胞。