[使「し」][役「えき」] => Coercive, permission, allow, make N4
Causative, Passive, Volitional
にひきかえ => In contrast to A N1
Comparison/ Exchange
~やむをえず  => unavoidable, no other way to do something N2
Necessity, obligation
~にひきかえ      => compared to; in contrast to; unlike; while; whereas ~ N1
[使「し」][役「えき」][受「う」]け[身「み」] => Imperative N4
Causative, Passive, Volitional
…ず、…ず => No... but also no... N1
Explain
~をきんじえない(~を禁じ得ない) => can't help but; can't refrain from ~ N1
...ず => without doing N3
Determined, determined
さえ/にさえ/でさえ => Even N3
Not only, Not even
~にたえる (耐える)    => bear doing ~ N1
ずに => without doing ~ N3
... はずみ.... => So N2
Result