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单词
sextant
释义
sextant
/ˈsekst(ə)nt/
n.
an instrument with a graduated arc of 60° used in navigation and surveying for measuring the angular distance of objects by means of mirrors
(
航海用的
)
六分仪
[Latin
sextans -ntis
‘sixth part’ from
sextus
‘sixth’]
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vectorial
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once bitten twice shy
once in a blue moon
once (or every once) in a while
once or twice
once-over
oncer
once upon a time
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on cloud nine (or archaic [古义] seven)
onco-
oncogene
oncogenic
oncogenicity
oncologist
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oncoming
on condition that
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更新时间:2026/5/23 20:35:10