Meaning of dū:
都
surname Du; capital city; metropolis
Tā de xìng shì Dū.
他的姓是都。
His surname is Du.
Běijīng shì Zhōngguó de shǒu dū.
北京是中国的首都。
Beijing is the capital of China.
Shànghǎi shì yí gè dà dūshì.
上海是一个大都市。
Shanghai is a large metropolis.
all; both; entirely; (used for emphasis) even; already; (not) at all
Tāmen dōu lái le.
他们都来了。
They all came.
Tā dōu bù gǎn shuōhuà.
他都不敢说话。
He didn't even dare to speak.
Tā yǐjīng dōu míngbái le.
他已经都明白了。
He already understands everything.
Wǒmen dōu fēicháng xǐhuān zhège dìfang.
我们都非常喜欢这个地方。
We all really like this place.