Parts III through V focus on how we can write our own types.

第三到第五部分着重讨论如何编写自己的类型。

youdao

V. Listen and write.

听音写单词。

youdao

V. Listen and write.

根据提示，听音写单词。

youdao

V. Look, listen and write.

看图，听一听，写一写。

youdao

V. Look, listen and write.

看图，听一听，写一写。

youdao