4 sentences

1. 一切都被连结到中心。

   yī​qiè dōu bèi lián​jié dào zhōng​xīn.

   Everything’s connected to the center.

   Source: CCMatrix

2. 大脑通过调节这些连结的数目和强度进行学习。

   dà​nǎo tōng​guò tiáo​jié zhè​xiē lián​jié de shù​mù hé qiáng​dù jìn​xíng xué​xí.

   The brain learns by adjusting the number and strength of these connections.

   Source: UM-Corpus: Education

3. 在那90分钟的授课过程中，他们看起来就像是一帮老朋友，因为热爱学习而连结在一起。

   zài nà90 fēn​zhōng de shòu kè guò​chéng zhōng, tā​men kàn​qi​lai jiù xiàng shì yī bāng lǎo​péng​you, yīn​wèi rè'ài xué​xí ér lián​jié zài yī​qǐ.

   Throughout those 90 minutes, they seemed like a group of old friends, united by a love of learning.

   Source: CCMatrix

4. 电子邮件中的连结有效期为24小时。

   diàn​zǐ​yóu​jiàn zhōng de lián​jié yǒu​xiào​qī wéi24 xiǎo​shí.

   The link in the email is valid for 24 hours.

   Source: CCMatrix