fail to grasp the main issue because of over-attention to details
见树不见林；见小不见大；重细节不抓重点
out of danger or difficulty
脱离险境（或困境）
said in order to prevent a confident statement from bringing bad luck
用手碰碰木头，但愿老走这种好运
I haven't been banned yet, touch wood.
我尚未遭禁，但愿老走这种好运。
Free of a difficult or hazardous situation; in a position of safety or security.
脱离险境：脱离困难或危险的情况；处于安全或保险的位置