雷信号 nere ction
阿雷西博信息 Arecibo message
雷达信标 [水运] [航] radar beacon ; racon ; radar marker ; ramark
扫雷信号球 minesweeping ball
雷达信号处理 [雷达] radar signal processing
雷达信标系统 RBS RadarBeaconSystem ; Radar Beacon System
信号雷达 Open signal maps ; OpenSignal ; OpenSignalMaps
自动雷达信标 ARB AutomaticRadarBeacon ; automatic radar beacon
克雷文先生把信读了两遍才把它放回信封。
Mr. Craven read the letter twice before he put it back in its envelope.
那人手里拿着一个托盘，上面放着几封信，他静静地等着，直到克雷文先生把信拿走。
The man held a salver with some letters on it and he waited quietly until Mr. Craven took them.
一个月之后，雷纳德的父母寄给她一封信：“黛博拉，你要我们做的我们都尽力做了。”
A month later, Rennard's parents sent her a letter: "We tried to do what you asked, Deborah."
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