semioccasionally 同义词
1 不期然
2 偶然
chance external scratch casual passing accidental contingent incidental unforeseen involuntary infrequent circumstantial promiscuous fortuitous adventitious fluky undesigned causeless unhistoric promiscuous-like occasional accidentally happily incidentally casually haphazard perchance haply peradventure chance-medley accident venture contingency hap happen
3 偶然地