Meaning of tàn xiǎn:
tàn xiǎn
探险
Verb
to explore; to go on an expedition
Tāmen xǐhuān zài shān lǐ jìnxíng tànxiǎn.
他们喜欢在山里进行探险。
They love to go on explorations in the mountains.
Wǒmen jìhuà zài shǔjià qījiān jìnxíng yīcì tànxiǎn.
我们计划在暑假期间进行一次探险。
We plan to go on an expedition during the summer break.
Noun
adventure
Tāmen xǐhuān qù yěwài jìnxíng tànxiǎn huódòng.
他们喜欢去野外进行探险活动。
They like to go on outdoor adventures.