"Big Ben" is the nickname for the Great Bell of the clock at the north end of the Palace of Westminster in London, and it is also often used to refer to the clock and the clock tower as well. The origin of the name "Big Ben" is not certain, but it is thought to have been named after Sir Benjamin Hall, who oversaw the installation of the bell in the tower.
英文例句及其中文翻译：
"Big Ben is one of London's most famous landmarks." (大本钟是伦敦最著名的地标之一。)
"I've always wanted to hear Big Ben chime in person." (我一直想亲自听大本钟的钟声。)
"The clock on Big Ben is accurate to within a second." (大本钟上的钟准确到一秒钟。)