textbook可数吗

意为教材可数。可数名词复数可以加the，表强调。textbook，主要用作为形容词、名词，作名词意为“教材，教科书，课本”，作形容词意为“规范的，标准的”。

Whose textbook is this?

这是谁的教科书?

We all have textbook.

我们都有课本。

We all read textbook together.

我们都一起念课本

She wrote a textbook on international law.

她写了本国际法教材。

The house is a textbook example of medieval domestic architecture

这所房子是典型的中世纪民居。

France Telecom is a textbook model of what can be achieved by a state-owned company.

法国电信是国有公司成功的典范。

I gave the textbook back to him

我将课本还给他了。

Long passages in this textbook have been lifted from other authors.

此教科书中有几大段是剽窃其他作者的。