crop up
US /krɑːp ʌp/
UK /krɑːp ʌp/

1.
timbul, muncul, terjadi
appear, happen, or come to attention unexpectedly
:
•
Problems always seem to crop up when you least expect them.
Masalah sentiasa timbul apabila anda tidak menjangkakannya.
•
A few interesting points cropped up during the discussion.
Beberapa perkara menarik timbul semasa perbincangan.