可可电台，每期节目一话题，让英语磨练耳朵的同时学到更多有益的小知识，丰富知识的同时受益于生活。

拒绝快餐

Fast food eggs are definitely not the breakfast of champions.

快餐鸡蛋显然不是冠军的早餐

Breakfast sandwiches at fast food restaurants are atrue modern marvel of chemistry.

快餐店的早餐三明治真的是化学的现代奇迹。

The "egg" sandwich at Subway, for example, has ingredients like glycerin, which is found in soap, and dimethylpolysiloxane,atype of silicone found in Silly Putty and many lubricants.

比如赛百味的鸡蛋三明治的原料有在肥皂里发现的甘油，还有二甲聚硅氧烷，那是一类在弹性橡皮泥和许多润滑油里发现的硅树脂。

【知识点津】

glycerin n.<化>甘油，丙三醇

dimethylpolysiloxane 聚二甲基硅氧烷

silicone n.硅树脂；（聚）硅酮

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