1 sentence

1. 该产品的质量已经达到了国家一级标准。

   gāi chǎn​pǐn de zhì​liàng yǐ​jīng dá​dào le guó​jiā yī​jí biāo​zhǔn.

   The quality of this product has reached national first-class standards.

   Source: Dong Chinese Dictionary