surety
n. 担保；保证；保证人
复数 sureties
例句
She was granted bail with a surety of $500.
她交了500元保证金，获得保释。
《牛津词典》
The insurance company will take warehouse stocks or treasury bonds as surety.
保险公司将接受仓库存货或国库券作为担保物。
《柯林斯英汉双解大词典》
He said, "Of a surety thou must remember me, my lord."
他说：“我的主啊，你一定要记住我。”
