广泛训练的英文：
extensive training

Removed the sablotron extension in favor of the new XSLT extension.
去掉了sablotron模块，使用新的XSLT扩展模块

The greatest difference was noted in extension.
伸展测试的差异是最显著的。

addition or extension that prolongs sth
增加或延长的部分.

Such contamination has been extensively studied.
人们对这种污染进行了大量研究。

They own extensive land by the sea.
他们拥有海边的辽阔土地。

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。