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单词
niacin
释义
niacin
ni
a
cin
/
ˈnaɪəsɪn
/
noun
[uncountable]
Etymology
ETYMOLOGY
niacin
Origin:
1900-2000
nicotine
+
acid
+
-in
chemical compound
science
,
biology
a type of
vitamin
随便看
royal
royal blue
royal flush
Royal Highness
royalist
royally
royalty
rpm
R & R
RR
rRna
RSI
RSVP
rte.
rub
rubber
rubber band
rubber boot
rubber bullet
rubber cement
rubber check
rubberneck
rubbernecker
rubber plant
rubber stamp
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更新时间:2025/3/25 21:15:16