noun
rock
/rɒk/
rock 是什么意思
岩石，岩礁，石头，基石
A lump or mass of hard consolidated mineral matter material consisting of the aggregate of minerals like those making up the Earth's crust United States gynecologist and devout Catholic who conducted the first clinical trials of the oral contraceptive pill (1890-1984) (figurative) someone who is strong and stable and dependable.
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