Unsuitable sexual behavior has what harm
searching [for] a suitable marriage partner [is] really difficult
whereas 适合 is an verb:
That kind of pasture most suits cows to eat
I suit what occupation?
However, YouDao lists 适合 as both a transitive and intransitive verb (i.e., no object):
I'm not sure this is correct as I don't recall ever seeing it as an intransitive verb, so want to check.
Question: Can 适合 be used as an intransitive verb?
If so, please give some illustrative examples.