单词：polyethylene cable
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情景对话： Walter: Not hydrofluoric. 氢氟酸就不会。 Jesse: Why not? 为什么不会？ 知识点笔记： hydrofluoric 氢氟酸 1. 确定辅音 相对来说，辅音变化最少。 单词中 h，dr，fl，r 和 c， 都没有特殊和奇怪
英国学生科学读本
第二天清晨，丹尼尔兴高采烈地和爸爸一起去爬山。可是爬到半山腰的时候，爸爸实在是累得筋疲力尽，这可怎么办呢？ Listen Read Learn Daniel: What a beautiful day! Dad: The weather is so crazy. It rained cats and dogs last night, but cleared up in the mornin
英语口语大赢家
CALVIN: So, are you pretty well settled in your new place? TOM: I still have to buy a washing machine and dryer. But otherwise I've pretty much finished moving. CALVIN: Does your building have cable T
娱乐英语
Why Teflon Is Slippery Teflon is the trademark name for PTFE, a type of plastic. If you own any non stick cookware, then you probably use PTFE on a daily basis. You might not realize, as you fry your morning eggs, that PTFE is one of the most slipper
英语时差8，16
Yael: I have a question for you, Don. Paper or plastic? Don: Not that question again, Yael. Does anyone really care whether their groceries are put in plastic or paper bags? Y: Sure they do. In fact, the city of San Francisco has taken an interest in
英语时差8，16
Why Teflon Is Slippery？ 1954年，法国工程师马克格雷瓜尔(Marc Gregoire)的妻子柯莱特(Colette)突发奇想，觉得丈夫用来涂在钓鱼线上防止打结的不粘材料特氟龙(Teflon)如果可以用在煎锅上，效果一定不错
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