名词中文翻译
中文翻译：先前安排的信号
同义词：
['previously arranged signal', 'previously arranged message']
例句：
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1. The previousarrangement of the meeting room has been changed.
会议室的先前安排已经被更改了。
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2.The previously arranged signal was not received.
先前安排的信号没有收到。
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3. The previous arrangement of the schedule had to be changed due to weather conditions.
由于天气条件，原先的日程安排不得不改变。