"an ability to interest casual students"
"showed a casual disregard for cold weather"
"an utterly insouciant financial policy"
"an elegantly insouciant manner"
"drove his car with nonchalant abandon"
"was polite in a teasing nonchalant manner"
Despite his nonchalant, rather lazy manner, Hollis was plainly delighted.
出自： A. J. Cronin
He had settled in, completely relaxed and nonchalant.
出自： C. Jackson