额外性
She has two cars and in addition a motorboat. 她有两辆轿车外加一艘汽艇。
The little girl is not very clever at addition. 这个小女孩不太善于做加法。
Ann will be a very useful addition to our team. 安来到我们队给我们增加了一员干将。
In addition, we supply small parts for replacement. 此外，我们还提供备用小零件。
Addition and division are forms of computation. 加法和除法都是计算方法。
The baby is a new addition to our family. 这个婴儿是我们家新增的人丁。
