6 sentences

1. 每个系统都有它的漏洞。

   měi gè xì​tǒng dōu yǒu tā de lòu​dòng.

   Every system has a flaw.

   Source: OpenSubtitles

2. 没有迹象表明存在安全漏洞。

   méi​yǒu jì​xiàng biǎo​míng cún​zài ān​quán lòu​dòng.

   There is no indication of a security breach.

   Source: OpenSubtitles

3. 黑客利用软件系统的漏洞窃取了数据。

   hēi​kè lì​yòng ruǎn​jiàn xì​tǒng de lòu​dòng qiè​qǔ le shù​jù.

   Hackers exploited a vulnerability in the software system to steal data.

   Source: Dong Chinese Dictionary

4. 我们最近发现你们的服务器存在严重漏洞。

   wǒ​men zuì​jìn fā​xiàn nǐ​men de fú​wù​qì cún​zài yán​zhòng lòu​dòng.

   We've recently discovered a serious vulnerability in your servers.

   Source: OpenSubtitles

5. 如果不彻底解决这个漏洞，恐怕会留下后顾之忧。

   rú​guǒ bù chè​dǐ jiě​jué zhè​ge lòu​dòng, kǒng​pà huì liú​xià hòu​gù​zhī​yōu.

   If this loophole is not completely resolved, I'm afraid it will leave future troubles.

   Source: Dong Chinese Dictionary

6. 他的水桶上有一个明显的漏洞，水一直在往下流。

   tā de shuǐ​tǒng shàng yǒu yī gè míng​xiǎn de lòu​dòng, shuǐ yī​zhí zài wǎng xià liú.

   There is a visible leak in his bucket, and the water keeps flowing out.

   Source: Dong Chinese Dictionary