rack switch 中文意思是什麼
rack switch
解釋
齒軌轉轍器-
I ' ll switch on the message light in his room and put the note into his key rack to make sure that he will get the message
我會把史密斯先生房內的留言燈打開。並將留言放在他的匙櫃內,以確保他能收到消息。
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