On this superhighway drivers should keep to a speed of over 80 miles per hour.
在这条高速公路上,驾驶
须保持每小时80英里以上的速度。
On this superhighway drivers should keep to a speed of over 80 miles per hour.
在这条高速公路上,驾驶须保持每小时80英里以上的速度。
A policeman has to keep on his toes all the time he's on duty.
警察在执勤时须时刻保持警
。
Athletes have to train continuously to stay in peak condition.
须不断训练才能保持最佳竞技状态。
声明：以上例句、词性分类均由互联网资源自
生成，部分未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
