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material scientists admire spider silk for being lightweight and strong.now another arthropod product is getting into the act insect cuticle,the tough flexible material is inside insect skeleton.researchers at harvard * institute for biological inspi
Scientific American(十二)月
Christmas Eve snow falling gently to the ground 't is the night before and in my heart there is no doubt that this is gonna be the brightest holiday 'cause here you are with me baby, baby, i can't wait to spend this special time of year with someone
英文圣诞歌曲
Maybe I should be a vampire instead of a princess,said Annie. She and Jack were sitting on their front porch. Acool breeze rustled the trees. Autumn leaves twirledto the ground. But you already have your princess costume, saidJack. Besides, you were
汪培珽儿童英文分级书单《神奇树屋》
This is an ode to the mother goddess, that most of us in India learn when we are children. 有一首关于印度神母的颂歌，是我们大部分的印度人从小就学习的。 I learned it when I was four at my mother's knee. 在我四岁的时候
TED演讲教育篇
New Year celebrations in London For lots of people in Britain, the 31st of December, or New Years Eve as we call it, is the biggest party of the year. Its a time to get together with friends or family and welcome in the coming year. New Years partie
Take Away English
DAVID GREENE, HOST: Well, the future of Brexit is uncertain this morning. So is the future for Prime Minister Theresa May. Really, so is the future of Britain. The prime minister is facing a vote of no confidence today. This comes after her governmen
2019年NPR美国国家公共电台1月