1 sentence

1. 我们承诺，备件会在72小时之内为您送达。

   wǒ​men chéng​nuò, bèi​jiàn huì zài72 xiǎo​shí zhī​nèi wèi nín sòng​dá.

   We promise that the spare parts will be delivered to you within 72 hours.

   Source: CCMatrix