surety的复数形式怎么写？

surety的音标：surety的英式发音音标为：['ʃʊərəti]surety的美式发音音标为：['ʃʊrəti]...

Bristol Crown Court granted conditional bail with a surety of £2,500.英国布里斯托尔刑事法庭准予有条件保释，保证金为2,500英镑。The insurance company will take warehouse stocks or treasury bonds as surety.该保险公司将接受仓库库存货物或长期国库券作为担保。There is no surety...

n.保证人，担保，保证...