How to import an external Word document into bookdown::word_document2

Publishing Your Results
1

For cross reference I use bookdown::word_document2 template , Meanwhile I use officer::block_pour_docx() function which can be used to import an external Word document into the current document.

---
title: "report"
output: bookdown::word_document2
---


```{r}
library(officedown)
library(officer)
block_pour_docx("questionnaire.docx")
```

But the code above does not work.
It seem that the officer::block_pour_docx() only works at officedown::rdocx_document

is there anything I can do to solve this problem? Thank you very much.