伊朗是中国第三大石油供应国。

Iran is China's third largest source of imported oil.

youdao

这块大石头的重量是那块的三倍。

This big stone is three times as heavy as that one.

youdao

这块大石头的重量是那一块的三倍。

This big stone is three times as heavy as that one.

youdao

这块大石头的重量是那一块的三倍。

This big stone is three times as heavy as that one.

youdao