Not so long ago,they would be proud to proclaim that they only knew English.请教一下这句为什么用would 句型,还有not so long ago 为什么比 once upon a time 更加适合

Not so long ago,they would be proud to proclaim that they only knew English.请教一下这句为什么用would 句型,还有not so long ago 为什么比 once upon a time 更加适合 Those were such happy times and not so long ago So Long Ago (Live) 歌词 Those were such happy times,and not so long ago的歌名是什么 Dinosaurs that lived long ago were not so large as the largest whales today翻译 Not that long ago long ago是形容词? just not long ago中文意思? Not that long ago.是什么句型? Not that long ago.请问这里的ago是什么意思?上句是：That was a long time ago. So long not see you It is not long before they are so accustomed to swimming that they can pick up weights from the floor of the pool.It is not long before Not so many year ago 翻译 long..are''so..they连成一句话是什么意思 long..are''so..they连成一句话是什么意思 long...are...so..they怎么连成一句话 it is not long before they are so accustomed to swimming.急it is not long before they are so accustomed to swimming 这里to后面的swim怎么可以用ing形式呢? 英语翻译Stone does not decay,and so tools of long ago have remained when even the bones of the man who made them have disappeared witnout trace. So long ago ,another life.I can feel your heart beat,it's not a dream ,remember us这句话的意思