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