他迟到并非因为懒惰，而是路上出了意外。

Tā chídào bìngfēi yīnwèi lǎnduò, ér shì lùshàng chū le yìwài.

He was late not because he was lazy, but because an accident happened on the way.

成功并非一朝一夕，而是长期努力的结果。

Chénggōng bìngfēi yìzhāoyìxī, ér shì chángqī nǔlì de jiéguǒ.

Success does not come overnight; it is the result of long-term effort.

这个问题并非那么简单，需要仔细考虑。

Zhège wèntí bìngfēi nàme jiǎndān, xūyào zǐxì kǎolǜ.

This issue is not as simple as it seems; it requires careful consideration.