6 sentences

1. 他看起来突然深思熟虑。

   tā kàn​qi​lai tū​rán shēn​sī​shú​lǜ.

   Suddenly he looked thoughtful.

   Source: CCMatrix

2. 做任何事之前深思熟虑一下。

   zuò rèn​hé shì zhī​qián shēn​sī​shú​lǜ yī​xià.

   Think carefully before doing anything.

   Source: CCMatrix

3. 他给我写了一封深思熟虑的回信。

   tā gěi wǒ xiě le yī fēng shēn​sī​shú​lǜ de huí​xìn.

   He wrote me a thoughtful response.

   Source: CCMatrix

4. 这似乎不是一个经过深思熟虑的计划。

   zhè sì​hū bù​shì yī​ge jīng​guò shēn​sī​shú​lǜ de jì​huà.

   This doesn't seem like a well-thought-out plan.

   Source: OpenSubtitles

5. 每个细节都从一开始就经过深思熟虑。

   měi​gè xì​jié dōu cóng yī kāi​shǐ jiù jīng​guò shēn​sī​shú​lǜ.

   Every detail had to be taken into consideration from the very beginning.

   Source: CCMatrix

6. 几乎不可能在一个话题上写一些深思熟虑的东西，更不用说12个了。

   jī​hū bù​kě​néng zài yī​ge huà​tí shang xiě yī​xiē shēn​sī​shú​lǜ de dōng​xi, gèng​bù​yòng​shuō12 ge le.

   It’s nearly impossible to write something thoughtful on one topic, let alone 12.

   Source: CCMatrix