from A to Z
从头到尾地、完整地
口语·强调全面性
英文释义
to encompass or cover everything; from beginning to end
例句
She knows the project from A to Z, so ask her anything.
典故来源
源自字母表首尾字母，象征完整覆盖所有内容，始于19世纪英语表达。