only natural
as it should be
certainly
of course
without doubt
You betcha
only not 简直是,跟…差不多,几乎
only for 要是没有…,要是不…
only if 只有…,只要…
only that 要不是…
if only 但愿,要是…就好了;只有,只要
if and only if 当且仅当
not only ... but 不但…而且
the only adv.唯一的,仅有的
not only prep. 1.不仅，不只
only to 不料竟会..., 没想到会...