视频对话：
It's tomorrow.
第二天了。
His insurance expired.
他的保险过期了。
本期学习词汇：
expire
vi.期满；文件、协议等（因到期而）失效；断气；逝世
例句：
1. His term of office as president will expire next year.
他的总统任期明年将届满。
2. He ran over the list of homeleases which were about to expire.
他翻阅了房屋租赁契约快要到期的清单。
3. My credit card will expire in June.
我的信用卡六月过期。