海南岛是中国第二大岛。

Hainan is the second largest island in China.

youdao

海南岛是中国第二大岛。

Hainan island is the second largest island in China.

youdao

海南岛是中国的第二大岛。

Hainan island is the second largest island of China.

youdao

海南岛是中国的第二大岛。

Hainan island is the second largest island of China.

youdao