it may not have cried out yet,but once it does it will startle everyone; one does not speak unless one can say sth. sensational ❍ 王曰： “此鸟不飞则已，一飞冲天；～。”(《史记·滑稽列传》)“The bird may not have flown yet，” replied the King. “Once it does,it will soar to the sky.It may not have cried out yet,but once it does it will startle everyone.”