(1)协议；协定
指当事人之间就相互交换允诺或行为达成一致。它不一定是合同〔contract〕，因其可能缺乏对价或属于非法交易。它的范围又窄于agreement，因其不能适用于所有的意思表示一致的场合。

(2)交易的条件
v.

(3)讨价还价；谈判

(4)用…作交易

• summons and order
• summons and severance
• summum jus
• Summum jus est summa injuria.
• sumner
• sumpnour
• sumptuary laws
• Sunday
• Sunday closing laws
• Sunday law
• Sunday Law of Charles the Second
• Sunday legislation
• Sunday school
• Sunday walking
• sundries
• sundry
• sunken wreck
• sunset law
• sunshine law
• sunstroke
• suo genere
• suo nomine
• suo periculo
• super
• superadded liability