The project you're working on contains very simple bits of data or data that's difficult to predict — you might get different data fields on different days or even from transaction to transaction.

您所从事的这个项目包含了一些简单的或难以预测的数据 — 在不同的日子获得的数据字段可能不同甚至事务之间的数据字段都不尽相同。

youdao

It turns out that it is quite difficult to identify real words, many of which are not likely to be found in a simple English dictionary, and to distinguish them from gibberish.

识别真实单词以及把它们与乱码区分开变得非常困难，这些真实单词中有许多在普通的英语词典上也无法查到。

youdao

I. Learning English should follow the principle from simple to complex, from easy to difficult, and from rough to subtle.

第一、学习英语应该遵循由简入繁、由易到难、由粗至细的原则。

youdao

From my perspective, this is a simple problem that has very complicated politics and emotion that make it difficult to make progress.

FORBES: Why 5% of Patients Create 50% of Health Care Costs

Yet it's difficult to imagine any proposal from Frist that would not entail an eventual up or down, simple majority vote on judicial nominees.

NPR: In the Senate, Fireworks Over the 'Nuclear Option'

Sociologists could have a field day with this question, but the explanation could be something as simple as the fact that people who live in cities are relatively insulated from how difficult and challenging it can be to produce the food, energy, equipment, devices, etc.

FORBES: What Explains The Partisan Divide Between Urban And Non-Urban Areas