Usage note
大概用来表示不确定的意思，比如猜测或估计。
dàgài láiyòng bǎolěi bù què定的 yìsi, rúguǒ cāngjié 或 jīcān猜测 或 估计。
大概 is used to express uncertainty, such as guessing or estimating.
Context note
大概常用于日常对话中，比如描述天气或猜测某人的感受。
dàgài cháng yòng yú rìyán huàluó zhōng, bǐrú mínguī 描述 天气 或 猜测 某人 的 感受。
大概 is commonly used in daily conversations, such as describing the weather or guessing someone's feelings.
5 examples
今天天气大概会下雨。
jīn tiān tiān qì dà gài huì xià yǔ。
Today’s weather will probably rain.
他大概在图书馆看书。
tā dà gài zài tú shū guǎn kàn shū。
He is probably reading in the library.
这道题大概很难。
zhè dào tí dà gài hěn nán。
This question is probably difficult.
她大概会来参加聚会。
tā dà gài huì lái cān jiā jù huì。
She will probably come to the party.
这本书大概有三百页。
zhè běn shū dà gài yǒu sān bǎi yè。
This book probably has three hundred pages.
5 mini stories
妈妈说今天天气大概会下雨，我们最好带伞去学校。
mā ma shuō jīn tiān tiān qì dà gài huì xià yǔ， wǒ men zuì hǎo dài sǎn qù xué xiào。
Mom said today’s weather will probably rain, so we should bring umbrellas to school.
爸爸猜朋友大概在公园散步，结果朋友真的在那里。
bà ba cāi péng yǒu dà gài zài gōng yuán sàn bù， jié guǒ péng yǒu zhēn de zài nà lǐ。
Dad guessed that his friend was probably walking in the park, and sure enough, his friend was there.
老师说这道题大概很难，但我们可以一起解决它。
lǎo shī shuō zhè dào tí dà gài hěn nán， dàn wǒ men kě yǐ yì qǐ jiě jué tā。
The teacher said this question is probably difficult, but we can solve it together.
朋友说他大概会来参加聚会，结果他真的来了。
péng yǒu shuō tā dà gài huì lái cān jiā jù huì， jié guǒ tā zhēn de lái le。
A friend said he was probably coming to the party, and sure enough, he did come.
这本书大概有三百页，我需要花很多时间读完它。
zhè běn shū dà gài yǒu sān bǎi yè， wǒ xū yào huā hěn duō shí jiān dú wán tā。
This book probably has three hundred pages, so I need to spend a lot of time reading it.
Mini dialogue
放学时间
A
爸爸大概几点来接我？
Bàba dàgài jǐ diǎn lái jiē wǒ?
Around what time will Dad probably pick me up?
B
大概五点半，你在校门口等。
Dàgài wǔ diǎn bàn, nǐ zài xiào ménkǒu děng.
Probably at five thirty, wait at the school gate.
找东西
A
我的橡皮不见了，大概掉在地上了。
Wǒ de xiàngpí bùjiàn le, dàgài diào zài dìshang le.
My eraser is missing, it probably fell on the floor.
B
别急，大概在桌子下面，我帮你找。
Bié jí, dàgài zài zhuōzi xiàmiàn, wǒ bāng nǐ zhǎo.
Don't worry, it's probably under the desk, I'll help you find it.
Related words and contrasts
similar
也许
yěxǔ
perhaps; maybe
Also expresses uncertainty
opposite
一定
yīdìng
definitely; certainly
Expresses certainty, the opposite of 大概