additional是附加的意思，而another则是另外一个的意思，区别可以从以下例子看出：
This match has additional thirty minutes due to draw, that is another opportunity for us to beat them.
由于平局，这场比赛还有附加30分钟，这是我们击败他们的另一个机会。
additional是附加的意思，而another则是另外一个的意思，区别可以从以下例子看出：
This match has additional thirty minutes due to draw, that is another opportunity for us to beat them.
由于平局，这场比赛还有附加30分钟，这是我们击败他们的另一个机会。
