reached speeds over 600miles an hour.speed为什么要加复数?这是整句。since that time,racing drivers have reached speeds over 600 miles an hour.

racing drivers have reached speeds over 600 miles an hour.这里为什么是speeds而不是speed? reached speeds over 600miles an hour.speed为什么要加复数?这是整句。since that time,racing drivers have reached speeds over 600 miles an hour. greet speeds The Internet is widely used,which ____ the development of English.A.speeds up B.takes over C.makes sense D.turns to reach Then a small hand reached over and took the father's hand.reach over 啥意思? Although Campbell reached a speed of over 304 miles per hour,句子成分 Finally, I reached over and took my mother's hand in mine .如何翻译?真诚相待! He won't have you doing things that way.We reached a settlement over new working conditions. after ten minutes ,the girl finally reached ( )bargain with the trader over ( ) lamp.括号里填两个介词 并解释为什么 Many officers from all over the world ____Shanghai in 2010 to attenend the Expo.A.arrived B.got C.arrived to D.reached Finally,I reached over and took my mother's hand in mine .如何翻译?其中 in mine 起什么作用?真诚相待! over over over over over over over