to discover the main cause of a problem
发现问题的根本原因 (fāxiàn wèntí de gēnběn yuányīn)
"We need to get to the root of the problem before we can fix it."
"我们需要在解决问题之前找到问题的根本原因。" (Wǒmen xūyào zài jiějué wèntí zhīqián **zhǎodào wèntí de gēnběn yuányīn**.)
to investigate or examine something
serving as a judge in a court
used when something hoped for did not happen
in good times and bad times
a sudden and powerful beginning; often used metaphorically
the most important or powerful person
