1. 他大概只有五英尺高。

[ tā dà gài zhǐ yǒu wǔ yīng chǐ gāo 。 ]

He is only about five feet high.

2. 只有努力，才能成功。

[ zhǐ yǒu nǔ lì ， cái néng chéng gōng 。 ]

Only by working hard can we succeed in doing everything.