Definition
to compel an individual to provide precise details or commit to a specific decision about a matter
確定；追問具體細節
In the meeting, we need to nail him down on every detail of the plan he proposed.
在會議中，我們需要逼他詳細說出他所提議的計劃的每個細節。
She was having a hard time making a decision, so I tried to nail her down to a date.
她一直難以做出決定，所以我試圖逼她定下一個日期。
During the contract negotiations, the lawyer nailed the other party down on the terms.
在合同談判期間，律師迫使對方在條款上作出明確的承諾。