6 sentences

1. 他在短短几天内就完成了任务。

   tā zài duǎn​duǎn jǐ tiān nèi jiù wán​chéng le rèn​wu.

   He finished the task in just a few days.

   Source: Dong Chinese Dictionary

2. 他在短短几年内就把家产挥霍一空。

   tā zài duǎn​duǎn jǐ nián nèi jiù bǎ jiā​chǎn huī​huò​yī​kōng.

   He squandered his family fortune in just a few years.

   Source: Dong Chinese Dictionary

3. 那个国家的经济在短短几年内实现了跨越式的跃进。

   nà gè guó​jiā de jīng​jì zài duǎn​duǎn jǐ nián nèi shí​xiàn le kuà​yuè​shì de yuè​jìn.

   The country's economy achieved a leapfrog advance in just a few years.

   Source: Dong Chinese Dictionary

4. 亚历山大大帝在短短几年内征服了庞大的波斯帝国。

   Yà​lì​shān​dà dà​dì zài duǎn​duǎn jǐ nián nèi zhēng​fú le páng​dà de Bō​sī dì​guó.

   In just a few short years, Alexander the Great conquered the vast Persian Empire.

   Source: Dong Chinese Dictionary

5. 这种新型病毒的传播速度极迅，短短几天内就传遍了全城。

   zhè zhǒng xīn​xíng bìng​dú de chuán​bō sù​dù jí xùn, duǎn​duǎn jǐ tiān nèi jiù chuán​biàn le quán chéng.

   This new virus spreads extremely rapidly, reaching every part of the city in just a few days.

   Source: Dong Chinese Dictionary

6. 他在短短几年内就凭借出色的商业头脑，成为了当地的钢铁大王。

   tā zài duǎn​duǎn jǐ nián nèi jiù píng​jiè chū​sè de shāng​yè tóu​nǎo, chéng​wéi le dāng​dì de gāng​tiě dà​wáng.

   In just a few short years, he became a local steel tycoon by virtue of his outstanding business acumen.

   Source: Dong Chinese Dictionary