a nine-thousand- word report和a three-legged deakword 和 leg两个都是名词做复合形容词,为什么word不加ed?

There are ______ books in our school library.A．nine thousand B．nine thousands C．nine thousand o 请大家帮我看下, How do you say the year1809?A.one eight 0 nine B.one thousand eight hundred and nineteenC.eighteen 0 nineD.one thousand eighty-nine 6.“The year 1999”should be read（应该读作）“The year _____.”A.nineteen and ninety-nine B.nineteen ninety-nine C.one thousand nine hundred ninety-nine D.nineteen hundred and ninety-nine Twenty-four thousand nine hundred怎么读 a thousand a thousand There are nine thousand books in the library and nine _________ them are about music.A.hundreds B.hundreds of C.hundred D.hundred of 1009 英语怎么说one thousand and nine ／one thousand nine 哪个对? 2008年英语怎么念 Two thousand nine or two thousand and2008年英语怎么念Two thousand nine or two thousand and nine 为什么1999年读成 nineteen ninety-nine 而不读成one thousand nine hundred and ninety-nine nine hundred and ninety-nine thousand什么意思还有nine hundred and ninety-nine million ,nine hundred and ninety-nine billion.这都怎么翻译的啊, climbing a mountain is hard wor “2009年”用英语读“two thousand nine? Two hundred and nine thousand two hundred and fifty seven nine hundred and twelve thousand seven hundred and twelve 翻译 Beijing is about (nine thousand kilometres.)对括号部分提问. It is about nine thousand kilometres from Canada to China 划线部分提问about nine thousand kilometres 划线部分. a nine-thousand- word report和a three-legged deakword 和 leg两个都是名词做复合形容词,为什么word不加ed?