2 sentences

1. 他全然忘记了之前的承诺。

   tā quán​rán wàng​jì le zhī​qián de chéng​nuò.

   He completely forgot his previous promise.

   Source: Dong Chinese Dictionary

2. 他正值壮年，却全然不懂男女风情。

   tā zhèng​zhí zhuàng​nián, què quán​rán bù dǒng nán​nǚ fēng​qíng.

   He is in his prime but knows nothing of romance.

   Source: Dong Chinese Dictionary