They climbed high up the mountain.
Meaning: This means people were moving upwards on a steep surface to a great elevation on a mountain.
Choice of Words: Climbed is a simple past tense verb that describes the action of moving upwards on a steep surface. High is an adjective that means at a great elevation. Up is an adverb that describes movement to a higher position. Mountain is a noun that refers to a large natural elevation of the Earth's surface rising abruptly from the surrounding level. Putting them together, this sentence describes people moving upwards on a steep surface to a great elevation on a large natural elevation of the Earth's surface rising abruptly from the surrounding level.
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Related Expressions