求翻译：著名语音学家初大告先生 初先生长期从事英语教学，经验丰富，学术造诣深，对英国文学、戏剧和英语语音有独到的研究，并精通世界语，为我国推行世界语的先行者之一 。是什么意思？

Mr Chu Ta-Kao, the famous speech engaged in teaching English at the beginning, experienced, accomplished academic, United Kingdom English voice in literary, dramatic, and there is original research, and proficiency in Esperanto, as one of the pioneer of Esperanto in China.