pledge

vt.

1. 保證給予；許諾；發誓[O1][+to-v][+that]
   He pledged never to come back until he had found her.

   他發誓不找到她絕不回來。

2. 使保證；使發誓[（+to）][O2]
   I pledged myself to fulfil the promise I had made.

   我保證實踐自己的諾言。

3. 用……抵押，以……典押[（+for）]
   The property was pledged as security for loans.

   這地產被當作貸款的抵押。

4. 為……祝願；向……祝酒
   Everyone at the table stood up and pledged the success of the new company.

   桌上每個人都起立為新公司的成功祝酒。