「旁述員」既英文係咩 ?

其實旁述員，英文叫：commentator
Cambridge Dinctionary Online就有以下的解釋，並實例
commentator
noun [C]
a reporter for radio or television who provides a spoken description of and remarks on an event, especially a sports competition, as it happens:
a radio commentator
a sports/football commentator.

而牛津第六版，在commentator條下的第二解釋也是：
a person who describes an event while it is happening especially on television or radio.
它舉的例有：a television/ radio/ sports commentator

希望幫到你！

003 的 commentator 最正確 !
commentator = 電臺、電視臺等的時事評論者, 實況播音員, 體育節目旁述員.

「旁述員」: narrator.

narrator

1. 解說員
He is the narrator of the documentary.
他是這部記錄片的解說員。

2. 敘述者,講述者
He listens and waits for the narrator to explain more.
他聽著,等待講的人進一步解釋。