quword
趣词
Word Origins Dictionary
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
keenness (n.)
[keenness 词源字典]
1520s, from
keen
(adj.) +
-ness
.
[keenness etymology, keenness origin, 英语词源]
[keenness 词源字典]