by chance; by accident; accidentally; happen to ; unexpectedly; casually; occasionally; once in a while; now and then; testicles; balls
適
by chance; by accident; accidentally; happen to ; unexpectedly; casually; occasionally; once in a while; now and then; occasional; infrequent; rare
偶
occasional; rare; by chance; by accident; accidentally; happen to ; unexpectedly; casually; occasionally; once in a while; now and then; occasional; infrequent; rare; even number; even; spouse; mate
偶々
casually; unexpectedly; accidentally; by chance; by chance; by accident; accidentally; happen to ; unexpectedly; casually; occasionally; once in a while; now and then
偶偶
by chance; by accident; accidentally; happen to ; unexpectedly; casually; occasionally; once in a while; now and then