years ago和over the years用什么时态

years ago和over the years用什么时态 over the years和through the years有什么区别 英语短文翻译 How old is old? The answer has changed over the years. Two hundred years ago, you we they built the old house over one hundred years ago改为被动语态 what were the computer like over 30 years ago? = =求翻译、 four hundred years ago,the number was ______ 50 millionnear more almost over哪个对? The emperor discovered tea over these thousand years ago.改为被动 five years ago my husband and I fell in love over the Internet to over the years同义词 over a hundred years ago 中over是什么词性? over four years ago的over什么意思 over 100 years ago这里的over什么意思? 完成句子the bridge over the river (正在重建)when I visited the city five years ago(rebuild)怎么解? 翻译,直译+寓意:it was started over forty years ago as a medical recovering programme,and over the years has grown rapidly . the airport had built years ago 和 the airport was built years ago 意思上有什么区别 英语翻译many of the things he wrote about in his books over 100 years ago look into the future from 400 years ago和about 400 years ago 区别 two years ago 和the last two years 在使用时态上的区别（有木有啊）