保
密
插
口
层
b
ǎ
o
m
ì
c
h
ā
k
ǒ
u
c
é
n
g
Definitions
1. secure sockets layer (SSL)
Components
保密
bǎo mì
–
to keep sth confidential
插口
chā kǒu
–
socket (for an electric plug)
层
céng
–
layer
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