in he fron of 在……内的最前面
If you don't stick your leg out in fron... front of you, you will not land hard on your heel.
若你不将腿伸到你的前…前方，你就不会用你的后脚跟用力地着地。
Via speech sound, it was alarmed train approaching, noticed the men working in brige or tunnel to be careful and keep away fron track, protected the safety of men and device.
以语音方式发出列车接近报警信息，通知桥梁或隧道中的工作人员注意和避让，保护人员和设备的安全。
Through the analysis on the materials of monitoring water quality of Xihu Lake in Dali fron 1991 to 1995, the article makes a study on the changing trend of its water quality.
通过对1991 ~ 1995年大理州西湖水质监测资料的分析，研究了西湖水质现状及其变化趋势。
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