If something is flagging, it is becoming tired or losing strength.

If something is flagging如果某個東西正在 flagging, it is becoming tired or losing strength意思是它變得疲乏、力氣正在下滑。

A runner's legs can be flagging near the end of a race. Your interest in a long class can be flagging. News writers also say flagging sales or flagging support — the numbers, or the public's energy, are slipping.

A runner's legs can be flagging跑者的雙腿可能會 flagging（開始沒力） near the end of a race在比賽快結束時。Your interest in a long class你在一堂很長的課裡的興致 can be flagging也可能漸漸 flagging（消退）。News writers also say flagging sales or flagging support新聞寫手也會說 flagging sales（銷量下滑）或 flagging support（支持度下滑） — the numbers, or the public's energy, are slipping意思是數字，或大眾的熱度，正在往下掉。

Though actually, it does not usually mean you have fully stopped; it means you are on the way down. People use it for bodies, for attention, and for things that are not bodies at all.

Though actually不過, it does not usually mean you have fully stopped它通常不是指你已經完全停下來了; it means you are on the way down而是指你正在往下滑。People use it for bodies大家會用它形容身體, for attention也會用來形容注意力, and for things that are not bodies at all還會用在完全不是身體的事物上。

It is a little more written than "getting tired", but you will hear it in ordinary talk too. The opposite idea is often unflagging: unflagging energy never seems to fade.

It is a little more written than "getting tired"它比 "getting tired" 稍微書面一點, but you will hear it in ordinary talk too但日常對話裡也聽得到。The opposite idea is often unflagging相反的概念常用 unflagging: unflagging energy never seems to fade unflagging energy（不衰的活力）意思是那種活力好像永遠不會退。