Yahoo奇摩字典 網頁搜尋

搜尋結果

1. Oxford American Dictionary

   optional

   • IPA[ˈäpSHən(ə)l]

   美式

   • adj.
     available to be chosen but not obligatory
2. • 釋義
   • 相關詞

   adj.

   形容詞

   • 1. available to be chosen but not obligatory a wide range of optional excursions is offered

   optional extra

   • n.
     a non-essential additional item which is available for purchase.

   Oxford Dictionary

3. • 更多解釋

   optional

   • IPA[ˈɒpʃən(ə)l]

   英式

   • adj.
     available to be chosen but not obligatory: a wide range of optional excursions is offered

   Oxford Dictionary