Preaccealerating electrode
[電] 前置加速電極
?? 詞語組成解析
??? 情景例句
this community can do anything to benefit its citizens,
這個社區可做任何造福居民的事情，
Have you ever thought about becoming a professional musician?
你曾經考慮了成為一個職業的音樂家嗎？
The park is on the right.
公園在右面。