2 sentences for 一度 (yī​dù — for a time)

1. 金钱一度受到黄金的支持。

   jīn​qián yī​dù shòu dào huáng​jīn de zhī​chí.

   Money once was backed by gold.

   Source: CCMatrix

2. 该物种曾一度被认定为灭绝。

   gāi wù​zhǒng céng yī​dù bèi rèn​dìng wéi miè​jué.

   This species was once thought to be extinct.

   Source: CCMatrix