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
e.r.a. (n.)
[e.r.a. 词源字典]
1949 in baseball as initialism (acronym) for
earned run average
. From 1971 in U.S. politics for
Equal Rights Amendment
.
[e.r.a. etymology, e.r.a. origin, 英语词源]
[e.r.a. 词源字典]