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单词
r-combination
释义
r-combination
r-combination
[
′är ‚käm·bə‚nā·shən
]
(mathematics)
An
r
-combination of a set is an selection of
r
elements of the set.
随便看
sibyllist
sibyl-of-cumae
sibyl (oracle)
sibyls
(sic)
sic
sic!
sica
sicads
sicaf
sica hollow state park
sical
sicalam
sicam-1
sicambri
sicamore
sican
sicani
sicania
sicanian
sicanians
sicap
sicar
sicard
sicard, jean anasthase
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更新时间:2026/7/2 15:35:50