Sentence examples for very difficult to trace from inspiring English sources

These complicated arrangements make it very difficult to trace where all the funds have gone.

And they always operate in ways that make it very difficult to trace back to them.

"The problem is that attacks from cyberspace can be very difficult to trace," he said.

They do so, however, in such a way that is very difficult to trace these supplies back to the government.

It is very difficult to trace such attacks back to a particular country, security experts say, because they can be routed through different Internet addresses to mask their true origin.

"It was very difficult to trace convicted paedophiles who were then living in the community," she said, because often all they had to go on was a court report of when someone had been sentenced.

According to Professor Saleem Ali, director of the Centre for Social Responsibility in Mining, that makes it "very difficult to track and trace [rare earth elements] from the mine to the product, because a lot of electronics manufacturers are outsourcing their product manufacturing and operations to Chinese companies, which get that material from somewhere within China".

"It's something very difficult to describe".

Indeed, these observations occurred at the dawn of behavioral neurology, and it is very difficult to back-trace definitive clinico-anatomical conclusions.

But criminal money is difficult to trace, it is silent and this is why it can be very dangerous".

Senator John McCain's family tree proved more difficult to trace.