Last Updated：2025/12/04

Dictionary quizzes to help you remember vocabulary

Dictionary quizzes to help you remember vocabulary

The upper stratum of coal.

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day coal

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Source Word

day coal

Noun

uncountable

The upper stratum of coal.

Japanese Meaning

石炭の上層部

What is this buttons?

Miners uncovered a vein of day coal along the cliff face, revealing a rich seam ready for extraction.

Google Translation / DeepL Translation

鉱夫たちは崖の岩肌で露出した上部炭層の一脈を見つけ、採掘に適した豊富な鉱床を露呈させた。

Sense（1）

The upper stratum of coal.

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