他说lz把feature弄坏了的时候，不要说他lie，直接说looks like you are not very

Looks like You are not very familiar with our system, but the feature you are talking abt has never existed. we can easily do a code comparison...  这样让人觉得他对工作不熟还指手划脚上蹿下跳，又显得你专业大度。