writing language

• 书写语言

writing language的用法和样例：

例句

1. All instruction was communicated orally, but for ordinary purposes, Caesar reports, the Gauls had a written language in which they used the Greek characters.
   凯撒报道说，所有的教导都是口头上沟通，但为了普通的目的，高卢人也有一种书写语言，他们使用了希腊语的特征。