若且唯若

if and only if

to seem / like / as / if

only / alone / -ism (in Chinese, a prefix, often combined with a suffix such as 主義|主义[zhu3 yi4] or 論|论[lun4], e.g. 唯理論|唯理论[wei2 li3 lun4], rationalism)

yes

and / moreover / yet / for the time being / to be about to / both (... and...)