While it is unknown just how much of this is true, it is certainly known that silk cultivation has existed in China for several millennia.

虽然我们不知道这其中有多少是真实的，但可以肯定的是，丝绸栽培在中国已经存在了几千年。

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Dr. Kaplan has been researching silk for 21 years — “sad but true, ” he joked — and spent much of the first decade learning about the fundamental mechanisms by which silk assembles.

卡普兰博士已经做了二十一年的丝类研究——“听起来有些悲惨但却是实情，”他开玩笑说，头十年的大部分时间都用来研究丝类聚集的基本机制。

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"Dead silkworm silk ended. candles burn into ash still" this is the most true portraiture of you, thank you, teach us knowledge, thank you for helping us paved the multicolored life.

“春蚕到死丝方尽，蜡炬成灰泪始干”这是对您最真实的写照，谢谢您！老师，教我们知识，谢谢您！老师，帮我们铺就人生的五彩石。

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Reported issues with kindle Fire are it runs hot to touch, video playback is jerky, touch screen is not responsive and it takes 2-3 touches to register, power button placement is very poor and is prone to accidental power off, all the hype of Silk browser is not true where the browsing is actually slower than on other Android tablets, etc.

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