Secondman
n. (内燃机车或电气列车上的)助理驾驶员
🗣️ 情景例句
She's enthusiastic about the new teaching method.
她对新的教学方法很热心。
Nothing is as good as it seems beforehand.
期待比现实更美好。
the message to its home planet is barely halfway there.
那么这个信号在发回到原来的行星途中刚刚走了一半路程。