英汉词典

1. 额外的;附加的;添加的
    Additional things are extra things apart from the ones already present.

    e.g. The US is sending additional troops to the region...
           美国正向该地区增兵。
    e.g. The insurer will also have to pay the additional costs of the trial.
           保险公司将不得不支付审判的额外费用。