tā duì cǐ shì de tàidu yīzhí hěn móhu, shéi yě bù qīngchu tā dàodǐ zěnme xiǎng

他对此事的态度一直很模糊，谁也不清楚他到底怎么想。

His attitude on this has always been vague, and no one really knows what he thinks.