nail down

美

英

第三人称单数：nails down 现在分词：nailing down 过去式：nailed down

英英

na.	1. to make someone agree to something or tell you what they are going to do 2. to definitely decide, arrange, or complete something 3. to attach something firmly in position with a nail or nails

释义:

钉牢,约束

随便看

英汉双解词典包含2704715条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。