turn a blind eye to ⇒ 我们不能对不良社会行为熟视无睹。 Wǒmen bùnéng duì bùliáng shèhuì xíngwéi shú shì wú dǔ. → We can't turn a blind eye to anti-social behaviour.
睹物思人
⇒ 夫妻俩睹物思人,想起了远在他乡的儿子。 Fūqī liǎ dǔ wù sī rén, xiǎngqǐle yuǎn zài tāxiāng de érzi. → The couple saw something that reminded them of their son who was far away from home.