他不慎遺失了身分證，必須趕快去補辦。
He accidentally lost his ID card and must go to replace it quickly.
Listen to pronunciation
Example sentences
他在開車時稍有不慎，差點撞上路邊的行人。
他在开车时稍有不慎，差点撞上路边的行人。
He was slightly careless while driving and almost hit a pedestrian on the side of the road.
他不慎跌入水中，大聲呼救。
He accidentally fell into the water and loudly called for help.
青少年如果交友不慎，很容易誤入歧途。
If teenagers are not careful about making friends, they can easily go astray.
Usage Notes
Often used in formal or written contexts to describe a lack of care that leads to mistakes or accidents.
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