英语词汇optional extra怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

短语

1
Too busy getting on with life, many seemed to have jettisoned courtesy as an optional extra.
由于过于忙的要应付生计，许多人似乎投弃了谦恭，把它当成是可选择的额外部分。
2
The system includes speakers and an amplifier. A projector security cage is an optional extra.
该系统包括还包括一个扬声器和放大器。
3
A simple idea would be to sell access to the quiet carriage as an optional extra when the ticket is bought.
只需在售票时为安静车厢额外收费，就可轻松实现这一想法。

单词	optional extra
释义	optional extra 简明释义可选的额外费用或服务网络释义短语 1 Extra optional Insurance 需要额外的保险双语例句 1 Too busy getting on with life, many seemed to have jettisoned courtesy as an optional extra. 由于过于忙的要应付生计，许多人似乎投弃了谦恭，把它当成是可选择的额外部分。 2 The system includes speakers and an amplifier. A projector security cage is an optional extra. 该系统包括还包括一个扬声器和放大器。 3 A simple idea would be to sell access to the quiet carriage as an optional extra when the ticket is bought. 只需在售票时为安静车厢额外收费，就可轻松实现这一想法。
随便看	hydrated silica hydrated silicon dioxide hydrated soap hydrated stock hydrated tower hydrate water hydrate form hydrate inhibitor hydrate inhibitor for natural gas hydrate isomerism Hydrate,Magnesium Hydrate,Methotrexate hydrate methyl hydrate mound hydrate of aluminium hydrate of barium hydrate of bromal hydrate of sodium hydrate phenyl hydrate plugs hydrate reflection hydrates Hydrate,Silicate hydratestorage hydrate water