例句與造句

1. Railroad engineers , not traffic engineers , should be credited for the lives saved in the interim , by their system of coding warning signals red , yellow , and green
   用亮燈作為通行信號，其明亮的燈光跟一般街頭的路燈差別不大，跟太陽光的閃爍差別也不大，路燈及太陽光都可能被誤認(rèn)為是通行信號。
2. Railroad engineers , not traffic engineers , should be credited for the lives saved in the interim , by their system of coding warning signals red , yellow , and green
   因?yàn)殍F路工程技術(shù)人員，而非城市交通工程技術(shù)人員發(fā)明的紅、黃、綠三色編碼預(yù)警系統(tǒng)挽救了在瞬間可能發(fā)生事故的許多人的生命，他們的功勞是不可磨滅的。
3. It's difficult to find signal red in a sentence. 用signal red造句挺難的