quword
趣词
Word Origins Dictionary
A
B
C
D
E
F
G
H
I
J
K
L
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O
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o
[o 词源字典]
interjection of fear, surprise, admiration, etc.; see
oh
.
[o etymology, o origin, 英语词源]
O
blood type, 1926, originally "zero," denoting absence of A and B agglutinogens.