TPO7 聽力 glacier movement - 英檢

這是TPO7 最後一篇lecture的其中一段

Ok, um, now I'd like to touch briefly on “Extension" and “Compression". Your
text book includes these as types...as a particular type of glacier movement.
But you'll see that there are as many text books that omit it as a type of movem
nt as include it.

請問這句是指
"有很多課本忘了將這種(Extension and Compression)當作是冰河移動的方式之一"
嗎?

因為這句子前面有omit,後面又有include
所以搞不太清楚@@ 謝謝~

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