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。
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