A source of nagging concern or uneasiness.
忧虑的事令人烦恼不安的担忧或不安的原因
He went on talking, lest he should expose his uneasiness.
他继续往下谈, 唯恐显露出内心的不安来。
The act of worrying or the condition of being worried; persistent mental uneasiness.
忧虑, 烦恼担忧的行为或处于担忧的状况; 一直精神不安
