ebullient

1. ADJ If you describe someone as ebullient, you mean that they are lively and full of enthusiasm or excitement about something. 精力充沛的; 熱情洋溢的[正式]

...the ebullient Russian president. …精力充沛的俄羅斯總統(tǒng)。

2. ebullienceN-UNCOUNT 精力充沛; 熱情洋溢

His natural ebullience began to return. 他天生的熱情開始恢復了。