so hard decision的意思|示意

The path to each decision is so short and irresistible, more like an electric pulse than like a weighing of options, that the reader is hard-pressed to explain what happened.

每一个决定的过程，都如此短暂而无法反对，与其说是各种选择间的衡量（读者很难去解释选择过程中到底发生了什么），不如说是电光火石般就完成了。

Apparently Kelly had been injured, so the hard decision was made that Brian and Nikko should go for help.

凯利显然已经受伤了，所以一个艰难的决定出现了，由布莱恩与日光去寻求帮助。

This is an atrocious design decision, roughly equivalent to leaving a sledgehammer next to the server machine so that people can bash the hard disks with it every once in a while.

这是一个很凶悍的设计思想，粗糙的等于拿一个大的锤子让人们可以在硬盘旋转中去敲打服务器。

Due to the NP hard problem, it is not realistic to find the optimal decision tree. So researching kinds of heuristic algorithms to induce a decision tree with high accuracy becomes a focus.

由于NP困难，寻找最优的决策树是不现实的，从而探索各种启发式算法去产生一个高精度的决策树变成了这类研究的焦点。

Rieekan had to make the difficult decision of evacuating the base that the men and women under his command had worked so hard to build.

里肯不得不作出撤离回波基地的艰难决定，这个基地是他手下的男兵和女兵千辛万苦建造的。

Getting to know all interfaces that an object's class does implement in runtime is not that hard thing to do so there must be a good reason behind this decision.

前往知道对象的类并在运行时实现所有的接口是不这样做，必须有这个决定背后的一个很好的理由，很难的事情。