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单词
refractometer
释义
refractometer
n. an instrument for measuring a refractive index.
Derivatives
refractometric adj. refractometry n.
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umbel
umbellifer
umber
umbilical
umbilicate
umbilicus
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umbo
umbra
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umbrella
Umbrian
umbriferous
umiak
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umpire
umpteen
'un
UN
un-
UNA
unabashed
unabated
unable
unabridged
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更新时间:2026/9/4 2:58:11