external-interior
input-exit
to send-to receive
to enter-go out
similarity- difference
constantly-never
shortcoming-wealth
fraction-whole
rigid-soft
full-empty
inaccuracy-accuracy
insecure-secure
external-interior
input-exit
to send-to receive
to enter-go out
similarity- difference
constantly-never
shortcoming-wealth
fraction-whole
rigid-soft
full-empty
inaccuracy-accuracy
insecure-secure