“忧虑的”用英语怎么说？

他表现出焦躁不安和过度忧虑的症状。He has exhibited symptoms of anxiety and overwhelming worry.你怎么解释这家公司高得令人忧虑的人员流动率？How do you account for the company's alarmingly high staff turnover?他突然看起来很阴郁，一副忧虑的样子。He looked suddenly sombre, pen...