Sentence examples for were complex and difficult from inspiring English sources

These were complex and difficult negotiations, which required creativity and tough choices on both sides".

Highly urban landscapes typically excluded traditional top predators such as wolves or bears, and the effects on the urban wildlife community that resulted were complex and difficult to predict.

At the same time, the financial machinations described in Steele's reports were complex, and difficult to confirm: "yanukovych had confided in putin that he did authorise and order substantial kick-back payments to manafort as alleged but sought to reassure him that there was no documentary trail left behind".

OCT images show reflections from interfaces within an object as well as light scattered by microscopic structure so, because papyrus is a layered structure, these images were complex and difficult to interpret.

In fact, Gross et al (2006)[ 1] found the effects of combinations of comorbidities on survival among colon cancer patients were complex and difficult to predict.

Ricker (1995) concluded that the effects of size-selective fishing were complex and difficult to disentangle from other factors affecting survival and growth in age-structured species, but that fisheries-induced genetic changes were likely, especially in pink and coho salmon (Ricker et al. 1978; Ricker and Wickett 1980).

The global system that encourages states to acquire nuclear weapons is complex and difficult to manipulate.

The amendments in schedule 10 of the bill are complex and difficult to follow.

Most therapists agree that the disorder is complex and difficult to treat.

They also make commitments using derivatives, creating obligations that are complex and difficult to quantify.

This work is complex and difficult and sadly we cannot eliminate risk or the miscalculation of risk.