力气训练的英文：
strength training

Union is strength
团结就是力量

Union is strength.
团结就是力量。

Maximum crushing strength (=crushing strength at maximum load)
抗压极限强度

The strength of the chain is in the weakest link.
链子的承受力在于最薄弱的一环。

The moral of the story is that 'Solidarity is strength'.
这个故事的教益在于'团结就是力量'。

the tail of a train
火车的尾部

explosive train
火药系

Is this dog trained?
这狗受过排便训练吗？

The train was in motion.
火车开动了。

This is a passenger train.
这是辆客运列车。