learn the ropes
US /lɜrn ðə roʊps/
UK /lɜrn ðə roʊps/

1.
熟悉情况, 掌握要领
to learn how to do a particular job or activity
:
•
It took him a few weeks to learn the ropes of his new position.
他花了几周时间才熟悉新职位的工作。
•
Don't worry, you'll soon learn the ropes here.
别担心,你很快就会熟悉这里的工作。