4 sentences

1. 这些承诺将是代价高昂的。

   zhè​xiē chéng​nuò jiāng shì dài​jià gāo'áng de.

   These promises will be costly.

   Source: AI Challenger 2017

2. 这种生活方式的成本无疑是高昂的。

   zhè​zhǒng shēng​huó​fāng​shì de chéng​běn wú​yí shì gāo'áng de.

   The cost of this lifestyle is undoubtedly high.

   Source: CCMatrix

3. 高昂的医疗费用是他们沉重的负担。

   gāo'áng de yī​liáo fèi​yòng shì tā​men chén​zhòng de fù​dān.

   High medical costs are a heavy burden on them.

   Source: CCMatrix

4. 她每天都高昂着头。

   tā měi​tiān dōu gāo'áng zhe tóu.

   She holds her head high every day.

   Source: CCMatrix