翻译：经过地狱式训练

地狱式是：hell-like
如果是讲“经过了地狱式训练之后，我们。。”
就是"After going through a hell-like training process,we..."

go through hell on training.

经过地狱式的训练

by hell-style training

Trained in hell-style

after the training as crucial as in the hell