短语词组短語nail someone down 敲定nail sth down 敲定某事使得萬無一失nail -down 打釘法nail down to 繙譯Wooden Nail Down 木條指甲挫clinch that nail down 把那個釘子釘牢He Nail Down Definite 他明確definitude nail down 明確nail down the agenda 安排儅天的日程 返回 nail down