creep up on
US /kriːp ʌp ɑːn/
UK /kriːp ʌp ɑːn/
1.
忍び寄る, こっそり近づく
to approach someone or something slowly and quietly so as not to be noticed
:
•
The cat tried to creep up on the bird.
猫は鳥に忍び寄ろうとした。
•
Don't let problems creep up on you; address them early.
問題が忍び寄ってこないように、早めに対処してください。