human facial expressions differ from those of animals in the degree___they can be controlledon purpose.知道固定用法can be controlled to the degree,但是in怎么办?in the degree是连着的吧?

问题描述:

human facial expressions differ from those of animals in the degree___they can be controlled
on purpose.知道固定用法can be controlled to the degree,但是in怎么办?in the degree是连着的吧?

degree是指程度,在这里指在...程度上