language learning是什么词性

是名词词性，例如：

1、This research has done much to advance our understanding of language learning.这项研究大大提高了我们对语言学习的认识。

2、Reading is of vital importance in language learning.阅读在语言学习中至关重要。

3、We invite you to join us on an amazing journey of language learning.我们邀请您加入我们的语言学习之旅。