费恩曼物理学讲义中的问题.我用中文说可能翻译的不太确切，直接上原文了.Now let us put twice as many molecules in this tank，so as to double the density，and let them have the same speed，i.e.，the same temperature.Then，to a close approximat
英语翻译21、同时，速度以一种非常规的方式开始减少到半生命期.（楼主：原文就是这么说， 22、.The irregular decrease in speed，which amounts to 147 times the speed of light in its starting point and expansion point，comes about through mutually se
新概念英语二册33课课文 急。谢谢 Lesson 33：Out of the darkness 冲出黑暗First listen and then answer thequestion.听录音，然后回答以下问题.Why was the girl in hospital？Nearly a week passed before the girl was able to explain what had happened to her.One afternoon she set out from the coast in a small boat and was caught in a storm.Towards evening，the boat struck a rock and the girl jumped into the sea.Then she swam to the shore after spending the whole night in the water.During that time she covered a distance of eight miles.Early next morning，she saw a light ahead.She knew she was near the shore because the light was high up on the cliffs.On arriving at the shore，the girl struggled up the cliff towards the light she had seen.That was all she remembered.When she woke up a day later，she found herself in hospital.New words and expressions 生词和短语darkness n.explain v.coast n.storm n.towards prep.rock n.shore n.light n.ahead adv.cliff n.struggle v.hospital n.参考译文几乎过了一个星期，那姑娘才能讲述自己的。
