1 sentence

1. 为了保险起见，他请专家鉴定这张古钞的真假。

   wèi​le bǎo​xiǎn qǐ​jiàn, tā qǐng zhuān​jiā jiàn​dìng zhè zhāng gǔ​chāo de zhēn​jiǎ.

   To be safe, he asked an expert to authenticate this ancient banknote.

   Source: Dong Chinese Dictionary