broad seal

例句：

1. 1. The book has a wide seal on the back.
   这本书的背面有宽边封皮。
2. 2. The package was sealed with a wide seal.
   这个包裹是用宽边密封的。
3. 3. The seal of the government is always wide and strong.
   政府的印章总是宽而坚固。