"buoyant balloons" "buoyant balsawood boats" "a floaty scarf"
"buoyant spirits" "his quick wit and chirpy humor" "looking bright and well and chirpy" "a perky little widow in her 70s"
Trade remained buoyant and agriculture improved.
The springer spaniel and the buoyant hare Seem half at home reclining in mid-air.
He was buoyant, childishly happy.
牛津高阶第八版
美国韦氏词典
Dictionary.com
Free Dictionary
维基百科 (自由的百科全书)