something that will never happen
永远不会发生的事情 (yongyuan bu hui fasheng de shiqing)
"He'll clean his room when pigs fly."
"他会在猪会飞的时候打扫他的房间。" (ta hui zai zhu hui fei de shihou dasao ta de fangjian)
to do what one has promised to do
to surprise or amaze someone greatly
to lead someone through a process or path
to go from a bad situation to a worse one
to rest for a short while to relax
fixed and not likely to change
