"the average American...is unconcerned that his or her plight is the result of a complex of personal and economic and governmental actions...beyond the normal citizen's comprehension and control"
"blithely unconcerned about his friend's plight"
"the prisoner seems entirely unconcerned as to the outcome of the examination"
"readers unconcerned with style"
He saw Soapey Sponge's preparations for departure with an unconcerned air.
出自： R. S. Surtees