adv.即刻，突如其来地...

Airbags inflate instantaneously on impact.安全气囊遇到撞击立即膨胀。Once the cargo has been shipped, insurance can be covered instantaneously.货物一旦发出, 我会立即投保.In a crash, momentum changes abruptly but not instantaneously.在撞击过程中, 动量的变化是...

instantaneously的音标：instantaneously的英式发音音标为：[ˌɪnstən'teɪnɪəslɪ]instantaneously的美式发音音标为：[ˌɪnstən'tenɪəslɪ]...