为什么第二句reached后不是a speeds of，是不是完成时的时候就不要了
更新时间：2026-09-30 14:50:00
问题描述:
1.Although Campbell reached a speed of over 304 miles per hour 2. racing drivers have reached speeds over 600 mites an hour.
1.Although Campbell reached a speed of over 304 miles per hour 2. racing drivers have reached speeds over 600 mites an hour.