Sentence examples for were difficult to explain from inspiring English sources

He denied accumulating the funds from drug traffickers' bribes, but acknowledged they were "difficult to explain".

If blogs were difficult to explain in 1999, Twitters are well nigh impossible.

Religious scholars in the past had struggled with such dysfunction and cruelty because they were difficult to explain by God's design.

The large differences observed in intestinal bacterial diversity from wild sable 3 were difficult to explain but could be attributed to differences in age (Yatsunenko et al. 2012) or geography (Amanda et al. 2010).

The texture evolution during dynamic and static recrystallization for halite, quartz and ice has been simulated and results agree surprisingly well with textures observed in experimentally and naturally deformed, recrystallized materials which were difficult to explain before.

However, 9 scFv gene variants showing no or barely detectable expression were difficult to explain along with the remainder of the set.

"It's difficult to explain," Koeman said.

Villas-Boas said: "It isaidffItult to explais.

It is difficult to explain why.

It is difficult to explain".

It's difficult to explain how bad it's been.