to fail completely or suddenly
彻底或突然失败 (chedi huo turan shibai)
"The new software update crashed and burned after launch."
"新的软件更新在发布后彻底失败了。" (xin de ruanjian gengxin zai fabu hou chedi shibaile)
to turn around and go back the way you came
to greet someone very kindly and enthusiastically
to make maximum effort even when it’s tough
in a hidden or secret part of the internet used for illegal...
very kind and generous
disappointed but having learned from the experience