因为其有两个行为，所以您可能会弄混代码，使其更难理解和维护。

Because it has two behaviors, you tend to intermingle the code, making it harder to understand and maintain.

youdao

在它生命周期的这一阶段，有短暂的一刻，其舌头由两个微小的半管组成，随后融合为一体。

For a brief moment during that stage of its life cycle, the tongue consists of two tiny half-tubes before merging into one.

youdao

有人也许会用袖珍相机和望远镜来进行拍摄，但是不仅连接其两者有很大的困难，照片的品质也会有所缺失。

One may also shoot with a compact camera and a telescope, but it brings not only the difficulties with the connection of the two devices, but the loss of quality.

youdao

Well, the discount rate is sort of the--you notice there are two different interest rates here and you might be confused by them.

贴现率是一种,这里有两种不同的利率,你们可能会将其混淆

耶鲁公开课 - 金融市场课程节选

What happens during mitosis is that the cell is able to separate this double set of chromosomes into two sets and that happens in a way that's shown in this cartoon here.

当细胞有丝分裂时,细胞将其分开形成两组染色体,如下图所示

耶鲁公开课 - 生物医学工程探索课程节选

The reason is because there are two different approaches to deal with illness: one,the positive psychological approach is that the illness is the absence of health, as opposed to health is the absence of illness.

究其原因，是因为有两种不同的方法,对付疾病，一是积极心理学方法,它指的是，疾病相当于不健康，相对地，健康等于没疾病。

哈佛公开课 - 幸福课课程节选