这次的错误微不足道，没必要太担心。
zhècì de cuòwù wēibùzúdào ， méi bìyào tài dānxīn 。
This mistake is negligible; there's no need to worry too much.
他微不足道的贡献被大家忽视了。
tā wēibùzúdào de gòngxiàn bèi dàjiā hūshì le 。
His insignificant contribution was overlooked by everyone.
这些微不足道的费用不值得关注。
zhèixiē wēibùzúdào de fèiyòng bùzhídé guānzhù 。
These negligible expenses are not worth paying attention to.