因此，字母“d”被认为是一个圆加一条线。

Thus, the letter "d" is perceived as a circle and a line.

youdao

第一次遇到一个字母，就在字典里面加一个项。

The first time you see a character, you would add an item to the dictionary.

youdao

第一次遇到一个字母，就在字典里面加一个项。

The first time you see a character, you would add an item to the dictionary.

youdao