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
urgency (n.)
[urgency 词源字典]
1530s, probably from
urgent
+
-cy
.
[urgency etymology, urgency origin, 英语词源]