on the nail

• adv. 立即(当场)

例句

用作副词 (adv.)

1. The telegram asked for an instant reply.
   这封电报要求立即回覆。
2. John backed the check immediately.
   约翰立即背书这张支票。

词汇搭配

• cash on the nail 即买即付的现金...
• hit the nail on the head 语言中肯