tā zǒng shì kuā kǒu shuō zì jǐ néng zuò rèn hé shì / jié guǒ yī jiàn shì yě méi zuò chéng

他总是夸口说自己能做任何事，结果一件事也没做成。

He always boasts that he can do anything, but ends up accomplishing nothing.