unavoidably
adv. 不可避免地;不得已地
例句
I was unavoidably delayed.
我无奈被耽搁了。
《牛津词典》
So a combat broke out unavoidably.
于是一场争斗不可避免地爆发了。
But, unavoidably, taxes must also go up.
但不可避免的是,税收也必将随之增加。