Usage note
既可以用在表示时间先后的句子中，比如‘我已经既完成了作业又读了书。’
jì y可用在表示时间先后的句子中，比如‘我已经既完成了作业又读了书。’
It can be used in sentences to indicate a sequence of events, such as '我已经既完成了作业又读了书。' (I have already both finished my homework and read a book.)
Context note
既常用于描述已经完成的事情，或者表示两个事情的先后关系。
jì ch常用于描述已经完成的事情，或者表示两个事情的先后关系。
It is commonly used to describe things that have already been completed or to indicate the sequence of two events.
5 examples
我已经既吃了早饭又喝了牛奶。
wǒ yǐ jīng jì chī le zǎo fàn yòu hē le niú nǎi。
I have already eaten breakfast and drunk milk.
他既去了北京又去了上海。
tā jì qù le běi jīng yòu qù le shàng hǎi。
He has been to both Beijing and Shanghai.
我们既学习了汉语又练习了书法。
wǒ men jì xué xí le hàn yǔ yòu liàn xí le shū fǎ。
We have studied Chinese and practiced calligraphy.
她既喜欢画画又擅长唱歌。
tā jì xǐ huan huà huà yòu shàn cháng chàng gē。
She likes drawing and is good at singing.
我们既参观了博物馆又去了公园。
wǒ men jì cān guān le bó wù guǎn yòu qù le gōng yuán。
We visited the museum and went to the park.
5 mini stories
小明既完成了作业又帮助妈妈打扫房间。
xiǎo míng jì wán chéng le zuò yè yòu bāng zhù mā ma dǎ sǎo fáng jiān。
Xiaoming finished his homework and helped his mother clean the room.
老师既教我们汉语又教我们数学。
lǎo shī jì jiào wǒ men hàn yǔ yòu jiào wǒ men shù xué。
The teacher teaches us both Chinese and math.
小红既去了图书馆又去了书店。
xiǎo hóng jì qù le tú shū guǎn yòu qù le shū diàn。
Xiaohong went to the library and then to the bookstore.
我们既学习了新单词又复习了旧知识。
wǒ men jì xué xí le xīn dān cí yòu fù xí le jiù zhī shi。
We learned new words and reviewed old knowledge.
他既参加了运动会又参加了文艺演出。
tā jì cān jiā le yùn dòng huì yòu cān jiā le wén yì yǎn chū。
He participated in both the sports meet and the cultural performance.
Mini dialogue
选课
A
你既喜欢画画，又喜欢唱歌吗？
Nǐ jì xǐhuān huà huà, yòu xǐhuān chànggē ma?
Do you like both drawing and singing?
B
是的，我既喜欢画画，也喜欢唱歌。
Shì de, wǒ jì xǐhuān huà huà, yě xǐhuān chànggē.
Yes, I like both drawing and singing.
新同学
A
他既聪明又友好。
Tā jì cōngmíng yòu yǒuhǎo.
He is both smart and friendly.
B
对，我们既喜欢他，也喜欢和他玩。
Duì, wǒmen jì xǐhuān tā, yě xǐhuān hé tā wán.
Yes, we both like him and like to play with him.
Related words and contrasts
related
又
yòu
and; also
Often paired with 既 in the pattern 既...又... (both...and...).
similar
已经
yǐjīng
already
Means 'already' but is used differently in a sentence.