翻译下面的句子(Translate the sentences19-21) 19.Buses numbered 1 to 100 are limited to travel within the city centre. _____________________________________________________________________ 20. Los Angeles, which was built with the motor car in mind , and is famous for its six –lane highways ,is now the USA’s most congested city. _____________________________________________________________ 21. A survey carried out at the end of 2003 suggests it does. _______________________________________________________________________ |