Tell me what they are one by one, please.

请一张一张地告诉我它们都是些什么。

youdao

You can tell by its annual rings. One annual ring means one year.

你可以从它的年轮得知。一个年轮代表一岁。

youdao

You can tell by its annual rings. One annual ring means one year.

你可以从它的年轮得知。一个年轮代表一岁。

youdao