2 sentences for 不惜 (bù​xī — not spare)

1. 为了买下这件古董珍宝，他不惜花费千金。

   wèi​le mǎi​xià zhè jiàn gǔ​dǒng zhēn​bǎo, tā bù​xī huā​fèi qiān​jīn.

   He didn't hesitate to spend a fortune to buy this antique treasure.

   Source: Dong Chinese Dictionary

2. 为了获取第一手资料，他不惜重金购买了专业设备。

   wèi​le huò​qǔ dì​yī​shǒu zī​liào, tā bù​xī zhòng​jīn gòu​mǎi le zhuān​yè shè​bèi.

   He spared no expense to buy professional equipment in order to obtain first-hand information.

   Source: Dong Chinese Dictionary