crop up
US /krɑːp ʌp/
UK /krɑːp ʌp/

1.
surgir, apparaître, se présenter
appear, happen, or come to attention unexpectedly
:
•
Problems always seem to crop up when you least expect them.
Les problèmes semblent toujours surgir quand on s'y attend le moins.
•
A few interesting points cropped up during the discussion.
Quelques points intéressants sont apparus pendant la discussion.