Meaning of dān dú:
dān dú
单独
Adjective
alone
Tā xǐhuān dāndú chūmén sànbù.
她喜欢单独出门散步。
She likes to go for a walk alone.
Adverb
by oneself; on one's own
Tā xǐhuān dāndú kàn diànyǐng.
他喜欢单独看电影。
He likes to watch movies by himself.
Tā xuǎnzé yī gè rén qù lǚxíng, xiǎng tǐyàn yī zhǒng xīn de dāndú gǎnshòu.
他选择一个人去旅行,想体验一种新的单独感受。
He chose to travel alone to experience a new feeling of independence.