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They had to post a signalman at the entrance to the tunnel.
他们不得不在隧道入口处安置一名信号员站岗。
《柯林斯英汉双解大词典》
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The signalman 's signature sign is significant to the vacant vacation.
信号员的签字符号对空假期具有重要意义。
youdao
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The signalman 's signature sign is significant to the vacant vacation.
信号员的签字符号对空假期具有重要意义。
youdao