"Well, now you take me to a particularly troubling part of this town's history."

Particularly troubling, he and other analysts said, is that the company attributed nearly all its problems to the grill promotion.

Poplars are particularly troubling because they tend to shed limbs.

The circumstances of the crime - especially the victim's age - were particularly troubling, the police said.

The accidents are particularly troubling because more than 2,400 Boeing 737's are in use.

The recent wave of attacks was particularly troubling because the targets were sensitive Government and military sites.

The absence from home has been particularly troubling, he said, because his children are old enough to understand what is going on.

It is particularly troubling because we are not just talking about disadvantaged youngsters.

This is particularly troubling since some of the certificates were issued for our own addons.mozilla.org domain.

Such a system "would have particularly troubling consequences with respect to prosecutorial power."