可叹

kě tàn tā nián shì yǐ gāo nán yǐ xiāng zhù

可叹他年事已高，难以相助。

It is regrettable that he is too old to help.

kě tàn tā shēn huàn zhòng bìng nán yǐ tóng xíng

可叹他身患重病，难以同行。

It's regrettable that he is too sick to go together with you.