C19
别名
C-19
释义与例句
n.
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1.
The nineteenth century; the 1800s.
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2.
COVID-19.
They are averaging less than 10 deaths with (not from) C19 a day […]
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3.
Describing a grouping of stars in the Milky Way galaxy halo that are 2,500 times lower than the sun.
天文