Contractual obligation
[经] 合同(契约)责任, 合同义务
🧩 词语组成解析
a. 契约的\\n[经] 契约的, 契约性的
🗣️ 情景例句
It will take less than 5 minutes to check out.
退房最多只需5分钟。
One never loses anything by politeness.
有礼貌对自己不会吃亏。
Mrs.Ramsay got very worried.
拉姆齐太太急坏了，