求翻译：在所有的动物中，狗和马在习语中扮演着最重要的角色（L.P Smith,1925）。受系统功能语言学的影响，语言学家开始探讨英语习语在交际活动中所引起的作用和功能。是什么意思？

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In all animals, the dog and the horse are acting the most important role in the custom language (L.P Smith,1925).The system function linguistics influence, the linguist is started to discuss English custom language the function and the function which causes in the human relations activity.

In all animals, dogs and horses played a most important role in the idiom (L.P Smith,1925). Under the influence of systemic functional Linguistics, linguists began to explore English idioms in communication caused by the role and functions.

正在翻译，请等待...