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
smoothness (n.)
[smoothness 词源字典]
late 14c., "smoothness, evenness," from
smooth
(adj.) +
-ness
.
[smoothness etymology, smoothness origin, 英语词源]
[smoothness 词源字典]