列车长的英文：
guard; conductor
It is conductor's responsibility to protect travelers' right.
保护出行者的权利是列车长的义务。
The guard wave his flag and the train leave the station.
列车长摇动手中的旗子，火车随之开出车站。
The train robbers coshed the guard.
抢劫列车的匪徒用短棍袭击列车长。
The general at once stepped out, while Phileas Fogg calmly followed him, and they proceeded together to the conductor.
旅长立刻跳下车来。福克也不慌不忙地跟着下了车。他们一起去问列车长。
the master of the train or the person in charge of the vehicle shall notify CIQ of the above-mentioned information.
列车或者其他车辆到达车站、关口时，列车长或者其他车辆负责人应当向卫生检疫机关报告。
n. 卫兵；护卫队；守卫；警戒；防护装置；列车长
v. 看守；监视；控制；防范
guarding position
防守位置
a guarded answer
谨慎的回答
...the Irish Guards
...爱尔兰近卫团
a security guard
安全警卫
The sentry is on guard.
那哨兵在站岗。
n. 指挥；领导者；列车员；导体
He's the conductor of an expedition.
他是远征队队长。
The conductor signaled the orchestra to rise.
指挥打手势让乐队起立。
The conductor shambled to the next carriage.
售票员慵懒地拖着脚走向下一节车厢。
A material obeying ohm's law is called an ohmic conductor or a linear conductor
凡是遵守欧姆定律的材料，都叫做欧姆导体或线性导体。
He's the conductor of our team.
他是我们团队的领导者。