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开区间

kāiqūjiān

Traditional: 開區間

open interval (in calculus)

Character Breakdown

开
kāi
to open; to start, to initiate, to begin
HSK 1
区
qū
area, district, region, ward; surname
HSK 4
间
jiān
between, among; midpoint; space, place, locality
HSK 2

Additional Information

Category
Chinese
HSK Character Level
—
HSK Word Level
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