How common it is
由此 appears often in everyday Chinese, so it is worth practicing early and reviewing often.
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Pronunciation focus
Say yóu cǐ slowly first, then repeat it in a short phrase. Listen for the tone shape.
Usage note
“由此”表示从某个原因或情况出发，引出结果或结论。
“Yóu cǐ” biǎoshì cóng mǒu gè yuányīn huò qíngkuàng chūfā, yǐn chū jiéguǒ huò jiélùn.
"Thereby" indicates starting from a certain reason or situation, leading to a result or conclusion.
Context note
这个词常用于书面语，连接前后逻辑。
Zhège cí chángyòng yú shūmiànyǔ, liánjiē qiánhòu luójí.
This word is often used in written language to connect logic.
5 examples
他努力学习，由此取得了好成绩。
tā nǔ lì xué xí， yóu cǐ qǔ dé le hǎo chéng jì。
He studied hard, thereby achieving good grades.
天气变暖，由此花儿都开了。
tiān qì biàn nuǎn， yóu cǐ huā ér dōu kāi le。
The weather became warm, thereby the flowers all bloomed.
她帮助了别人，由此交到了新朋友。
tā bāng zhù le bié rén， yóu cǐ jiāo dào le xīn péng yǒu。
She helped others, thereby making new friends.
我们节约用水，由此保护了环境。
wǒ men jié yuē yòng shuǐ， yóu cǐ bǎo hù le huán jìng。
We save water, thereby protecting the environment.
他每天锻炼，由此身体变得更强壮。
tā měi tiān duàn liàn， yóu cǐ shēn tǐ biàn de gèng qiáng zhuàng。
He exercises every day, thereby becoming stronger.
5 mini stories
小华每天读书，由此学到了很多知识。他喜欢和同学分享。
xiǎo huá měi tiān dú shū， yóu cǐ xué dào le hěn duō zhī shi。 tā xǐ huan hé tóng xué fēn xiǎng。
Xiao Hua reads every day, thereby learning a lot of knowledge. He likes to share with classmates.
公园里种了很多树，由此空气变得清新。大家常去散步。
gōng yuán lǐ zhǒng le hěn duō shù， yóu cǐ kōng qì biàn de qīng xīn。 dà jiā cháng qù sàn bù。
Many trees were planted in the park, thereby the air became fresh. Everyone often goes for walks.
老师耐心教导，由此学生们进步很快。他们都很感激。
lǎo shī nài xīn jiào dǎo， yóu cǐ xué shēng men jìn bù hěn kuài。 tā men dōu hěn gǎn jī。
The teacher patiently taught, thereby the students improved quickly. They are all grateful.
小丽坚持练琴，由此钢琴弹得越来越好。她参加了比赛。
xiǎo lì jiān chí liàn qín， yóu cǐ gāng qín tán dé yuè lái yuè hǎo。 tā cān jiā le bǐ sài。
Xiao Li persisted in practicing piano, thereby playing better and better. She participated in a competition.
大家互相帮助，由此班级更加团结。他们一起完成了任务。
dà jiā hù xiāng bāng zhù， yóu cǐ bān jí gèng jiā tuán jié。 tā men yì qǐ wán chéng le rèn wu。
Everyone helped each other, thereby the class became more united. They completed the task together.