A tiny defect or a small overlooked problem can lead to a great disaster; a small fault can ruin a huge project.
安全生产无小事，任何一点疏忽都可能导致严重后果，正如千里之堤，毁于蚁穴
There are no small matters when it comes to workplace safety; any slight oversight could lead to serious consequences, just as a thousand-li dike can be destroyed by an ant-hole.
Next Idiom