英语翻译It is a mysterious thing adn scientists are still strying to work out what exactly happens.

英语翻译和It is a tough 翻译 英语翻译it is a sports special.翻译 英语翻译：It means it is a warm day today. 英语翻译It is a hard language ,but it is never too early to start learning it. 英语翻译it is english 英语翻译it is( )( )that 英语翻译it is a matter of congratulation.it is a letter of congratulation. 英语翻译it is a fact that the US is using up energy faster than it is producing it 英语翻译：骑自行车很简单It is easy ( )( )a bike 英语翻译：it is renewable in a very fast speed 英语翻译Is it important to learn a second language? 英语翻译原文是icannot，maybe it is just a little 英语翻译inportant second is to language it a learn【排序 英语翻译i believe it is a very significative work!可否? 英语翻译Why are you so sure that it is a 英语翻译It is definitely not a 9-5 job! 英语翻译It is generally believed that teaching is as much an art as it is a science. 英语翻译It is a ____ that the sow is not ___ ____ to make a snowman