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1. Oxford American Dictionary

   buoyancy

   • IPA[ˈboiənsē]

   美式

   • n.
     the ability or tendency to float in water or air or some other fluid.；the power of a liquid to keep something afloat

   • noun: buoyancy

2. • 釋義

   n.

   名詞

   • 1. the ability or tendency to float in water or air or some other fluid. 同義詞 ability to float, tendency to float, lightness, rarefloatability
   • ▪ the power of a liquid to keep something afloat she plunged into the sea, grateful for the buoyancy of the salt water 同義詞 lift, lifting effect
   • 2. an optimistic and cheerful disposition the happiness and buoyancy of his nature 同義詞 cheerfulness, cheeriness, happiness, light-heartedness, carefreeness, ... 更多brightness, gladness, merriment, joy, bounce, effervescence, blitheness, sunniness, breeziness, jollity, joviality, animation, liveliness, life, sprightliness, jauntiness, ebullience, high spirits, vivacity, vitality, verve, sparkle, zest, optimism, confidence, hope, bullishness, sanguineness, positiveness, informalpep, zing, zip反義詞 depression, pessimism
   • 3. a high level of activity in an economy or stock market there is renewed buoyancy in the demand for steel 同義詞 vigor, strength, high level of activity, burgeoning, resilience, ... 更多growth, development, progress, improvement, expansion, mushrooming, snowballing, ballooning反義詞 depression