sinker

1. PHRASE You can use hook, line, and sinker to emphasize that someone is tricked or forced into a situation completely. 完全地; 毫無(wú)保留地[PHR after v] [強(qiáng)調(diào)]

We fell for it hook, line, and sinker. 我們對(duì)它完全是一見(jiàn)傾心。