佢不經意間撞跌咗個File，見到老公同情婦嘅合照。
佢不经意间撞跌咗个File，见到老公同情妇嘅合照。
She unintentionally knocked the file off the table, and saw the photo of her husband and the mistress.
Definitions (Wiktionary)
adj
careless; by accident; thoughtless
他招認，當時他的這一不經意的行動，是因為生怕如果金正恩同志的領軍基礎和體系一旦鞏固起來，將給他篡奪黨和國家的權力造成巨大障礙。
他招认，当时他的这一不经意的行动，是因为生怕如果金正恩同志的领军基础和体系一旦巩固起来，将给他篡夺党和国家的权力造成巨大障碍。
tā zhāo rèn ， dāng shí tā de zhè yī bù jīng yì de xíng dòng ， shì yīn wèi shēng pà rú guǒ jīn zhèn gēn tóng zhì de lǐng jūn jī chǔ hé tǐ xì yī dàn gǒng gù qǐ lái ， jiāng gěi tā cuàn duó dǎng hé guó jiā de quán lì zào chéng jù dà zhàn gài ． Jang confessed that he behaved so at that time as a knee-jerk reaction as he thought that if Kim Jong Un's base and system for leading the army were consolidated, this would lay a stumbling block in his way of grabbing the power of the party and state.
She unintentionally knocked the file off the table, and saw the photo of her husband and the mistress.
Examples (Wiktionary)
Mandarin
他招认，当时他的这一不经意的行动，是因为生怕如果金正恩同志的领军基础和体系一旦巩固起来，将给他篡夺党和国家的权力造成巨大障碍。
他招認，當時他的這一不經意的行動，是因為生怕如果金正恩同志的領軍基礎和體系一旦鞏固起來，將給他篡奪黨和國家的權力造成巨大障礙。
tā zhāo rèn ， dāng shí tā de zhè yī bù jīng yì de xíng dòng ， shì yīn wèi shēng pà rú guǒ jīn zhèn gēn tóng zhì de lǐng jūn jī chǔ hé tǐ xì yī dàn gǒng gù qǐ lái ， jiāng gěi tā cuàn duó dǎng hé guó jiā de quán lì zào chéng jù dà zhàn gài ．
Jang confessed that he behaved so at that time as a knee-jerk reaction as he thought that if Kim Jong Un's base and system for leading the army were consolidated, this would lay a stumbling block in his way of grabbing the power of the party and state.