词汇信息

中文含义：牛皮纸、遗嘱、密封证明书

英语词性：noun

美式音标：[‘bʌlə]

同义词：parchment, deed, certificate, document

易混淆单词：bellow, bullet, burr

双语例句

例句一：

My grandfather’s will was written on an old bulla.

中文翻译：

我祖父的遗嘱是写在一张旧牛皮纸上的。

例句二：

This bulla is a proof of authenticity for the ancient artifact.

中文翻译：

这份密封证明书是证明这件古文物真实性的证据。

重点词汇练习

1. The bulla was used as a form of document and sealing.

2. The bulla was lost for many years before it was rediscovered.

3. A bulla is a valuable historical artifact that can provide many insights into the past.