"No longer could these protohorses
couldslip away through thick forest when danger threatened." Give me some explanations about the meaning of "slip away" in above the sentence.
Here, "slip away" means to leave or disappear from a place, usually quickly and without attracting attention.
For example: "I wasn't enjoying the party so I decided to slip away out the back door and go home".
If you think about how grains of sand can slip quickly and silently through your fingers, then you can understand how the protohorses might have slipped away through the forest in a similar manner.
And I tried just two sentences to understand the "slip away" and "slip through".
Check these sentences below whether it's correct.
A. Sand particles slipped through my fingers. (OK)
B. Sand particles slipped away through/from my fingers.
C. It keeps slipping through my fingers.
not a teacher