It costs about, um, fifteen dollars each.这要花大约，嗯，15美元一个。

今天的几个句子都是有关表达犹豫的：1. He can't come until, er, ten o'clock.他不会在，呃，10点钟以前来的。2. It's from, I've nearly got it,er, Argentina.那是来自，呃，记起来了，阿根廷。3. It's the, hang on a sec, yes, the 10th of May.那是，等一会，对了，是5月10号。