full of confidence, energy and good humour 充满自信的；精力充沛的；热情洋溢的 The Prime Minister was in ebullient mood. 首相兴致勃勃。 🔊🔊 He was accompanied by an ebullient, talkative blonde. 他陪伴着一个热情洋溢，健谈的金发女郎。 The ebullient Mr Clarke was not to be discouraged. 信心十足的克拉克先生是不会气馁的。 She sounded as ebullient and happy as ever. 她听起来一如既往的热情洋溢和快乐。
Word Originlate 16th cent. (in the sense ‘boiling’): from Latin ebullient- ‘boiling up’, from the verb ebullire, from e- (variant of ex-) ‘out’ + bullire ‘to boil’.