trace the origin
Tracing back to the origin, Chinese idioms, Pinyin is Tu ī B ě ns ù Yu á n, which means to explore the root, to find the reason.
Analysis of Idioms
On the root of the problem
Idiom usage
It means to have the courage to explore. examples we must make great efforts to trace the origin of learning.
trace the origin
a fish escaped through the seine - lòu wǎng zhī yú
little drops of water make an ocean - jī shuǐ chéng yuān
build up one 's strength to avenge an insult - shí nián shēng jù
new clothes and delicious food -- extravagant living - xiān yī měi shí