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hoiˉ¹開coiˊ²採
(开采)
Pinyin
kai1 cai3
Translations
noun
to mine; mining; extract; exploit; tap
hoiˉ¹開coiˊ²採sekˍ₆石jauˎ₄油
(开采石油)
Pinyin
kai1 cai3 shi2 you2
Translations
noun
tap oil; exploit petroleum