vociferator

例句：

1. 1. The teacher wasvociferous in his criticism ofthe student's work.
   老师在批评学生的作品时非常激烈。
2. 2. The orator spoke passionately aboutthe importance of education.
   这位演说家热情地谈论教育的重要性。
3. 3. The inspirer gave us hope and motivation to overcomeour challenges.
   那位鼓舞者给了我们克服挑战的希望和动力。