Achilles' heel

In the inspection report, "Fatal Defects, Major Defects, Minor Defects" is based on the degree of impact of product defects on the use of safety, product functionality, appearance and customer acceptance to be divided, the specific meaning is as follows: First, the fatal defects: a threat to the safety of the "red line" Fatal defects (Critical Defect) refers to those defects that may cause harm to the user's personal safety, or serious violations of relevant laws and regulations, industry mandatory standards...