on the nail的用法和樣例：
例句
用作副詞 (adv.)
- The telegram asked for an instant reply.
這封電報要求立即回覆。 - John backed the check immediately.
約翰立即背書(shū)這張支票。
詞匯搭配
- cash on the nail 即買(mǎi)即付的現金...
- hit the nail on the head 語(yǔ)言中肯
