adj.(失误)自己造成的，非受迫性的，自然的，轻易的，不费力的

He missed an unforced error in the tennis match, which cost him the game.
他在网球比赛中犯了一个非受迫性的错误，这让他失去了比赛。
She made an unforced apology for being late, but it didn't change the fact that she was consistently tardy.
她对迟到做出了一个非受迫性的道歉，但这并没有改变她总是迟到的事实。
The car accident was unforced; it happened due to driver fatigue.
这起车祸是由于驾驶员疲劳造成的，属于非受控因素。
His explanation for the mistake was so unforced and sincere that everyone believed him.
他对于错误的解释非常自然且真诚，大家都相信了他。
The golfer's swing was so unforced that he hit the ball straight into the hole.
高尔夫球手的挥杆动作非常流畅，直接将球击入洞中。
The company's decision to close the store was an unforced error, as sales had been declining steadily.
公司关闭商店的决定是一个非受迫性失误，因为销售额一直在持续下滑。
In the heated debate, he made an unforced comment that surprised everyone.
在激烈的辩论中，他的一句不经意的话让所有人都感到惊讶。
After years of practice, his piano performance was almost entirely unforced and effortless.
经过多年的练习，他的钢琴演奏几乎达到了行云流水，毫无拘束的状态。
His laughter was an unforced response to the funny joke told by his friend.
对朋友讲的笑话，他的笑声是发自内心的，没有做作。
The athlete's victory was an unforced triumph, showcasing his exceptional skill and preparation.
这位运动员的胜利是不费吹灰之力的，彰显了他的卓越技术和准备。