我不敢完全肯定PDF文件里是否藏有病毒，所以决定暂时不贴出来。

Since I am not completely certain that the clean PDF doesn't contain a hidden virus, I've elected not to post it just yet.

youdao

对于第二点，我不完全肯定。

I'm not so sure about the second.

youdao

那姑娘应该是个活人吧，我不敢完全肯定：她的身体暖乎乎的，除此以外她跟木头就没啥区别了。

The girl was alive, as far as I could tell: she had a warm body, and she was better than nothing.

youdao