a railroad employee in charge of signals and point in a railroad yard
造句
用作名詞(n.)
The signalman on the ship wigwagged the good news to the other ship. 那艘船上的信號(hào)員用旗語(yǔ)向另一艘船發(fā)送好消息。
The signalman left his cabin before attending to his signals and so committed a grave breach of duty. 信號(hào)員沒(méi)有發(fā)完信號(hào)就離開(kāi)了他的小木房，因此犯了嚴(yán)重的玩忽職守的錯(cuò)誤。
近義反義詞
signal
signalyzer
signal rod
signal mix
signalizer
signal set
signal man
signal for
signal gas
signal gun
signal disc