但是, 奇怪的是, 之前的研究有許多是用文本的語料來研究語用的功能

但是, 奇怪的是, 之前的研究有許多是用文本的語料來研究語用的功能

結果 (英文) 1:

However, it is strange that many of the previous studies used text corpus to study pragmatic functions

結果 (英文) 2:

But, strangely, many of the previous studies have used text-based texting to study pragmatic functions.

結果 (英文) 3:

However, it is strange that many of the previous studies used textual materials to study pragmatic functions