under seal

汉语翻译

英语解释：

名词 under seal:

1. seal consisting of a coating of a tar or rubberlike material on the underside of a motor vehicle to retard corrosion
   同义词：undercoat, underseal

例句：

1. An agreement or promise made orally or in writing not under seal; a contract.
   协定口头或书面未经盖印的协议或许诺; 协定