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Lesson 88 Condensation 第88课 冷凝 When the water in a kettle boils, it boils first at the bottom. 当水壶中的水沸腾时, 首先开始沸腾的是底部的水。 We cannot see this in a kettle, because the kettle is made of iron. 我们无法
[00:00.00]Unit 2 Snakes don't need legs [00:03.72]第二单元 蛇不需要腿. [00:07.44]1.Listen,point and say [00:12.97]1.听,指出并且说 [00:18.49]One day,some friends ate dinner. [00:20.47]有一天,许多朋友在一起吃饭 [00:22.44]Afte
Kevin had just finished dessert. It was a piece of dark chocolate, washed down with a glass of cold milk. Delicious! He rinsed his mouth out with a glass of water, and then spit into the kitchen sink. He sat down at the dining room table and grabbed
[00:00.00]MODULE 6 [00:17.48]UNIT1 [00:21.60]2. Listen and write. [00:28.68]He _____ TV. [00:31.97]He _______ _____ to music. [00:37.09]She ______ to school by bus. [00:43.05]She ____ ____ to school. [00:48.69]He ____ with a toy. [00:53.97]He _____ _
BBC Learning English London Life Friendliness on the tube Yvonne:I'm Yvonne Archer and this is London Life from bbclearningenglish.com. Hello! In today's programme, we're talking about friendliness on London's tubes. Is there any? As you probably kn
This extra jostling pushes the atoms farther apart, causing the whole substance to slightly increase in size. If the substance cools off, its atoms stop pushing against each other so vigorously. This makes the substance shrink again. This connection