Mullen,the Chairman of the Joint Chiefs of Staff, made clear the drop in support is worrisome.

VOA: standard.2009.08.23

The problem is, things that you catch here are bug actually the least worrisome bugs.

问题是，这儿你捕捉到的问题是,隐患最小的。

麻省理工公开课 - 计算机科学及编程导论课程节选

New construction is worrisome, said UNESCO's Abdel Moneim Osman.

VOA: standard.2010.08.05

"And,that is a very worrisome thing. The alternative,however,is even worse, which is,if we do not use them, then we definitely know that we are not going to be getting any assistance out there,"

VOA: standard.2009.08.07

The onslaught of worrisome news is creating an investor climate similar to a brief panic that erupted on May 6, when the Dow Jones Industrial Average plunged by 1000 points before bouncing back later in the day, according to UBS Financial Services market analyst Art Cashin.

VOA: standard.2010.05.20