VERB
苦惱;煩惱;發愁
If you fret about something, you worry about it.
例句
I was working all hours and constantly fretting about everyone else's problems...
我一刻不閑地工作，總是為別人的事操心。
But congressional staffers fret that the project will eventually cost billions more...
但是國會工作人員擔心這項計劃最終會多耗資數十億元。