Don 't spend so much time trying to choose the perfect opportunity, that you miss the right opportunity.

不要花太多时间以试图找到完美的机会，你可能会因此错过合适的机会。

youdao

Granted, Klipsch has that oval shape all sorts of locked down, but once you've used an ear tip that's actually engineered to fit in one's ear (hint: ear holes aren't perfect circles), you'll have a hard time using anything else.

ENGADGET: IRL: Logitech UE 900 headphones, Nokia Lumia 900 and the Galaxy Note II

My parents did not approve, actually I don't think I ever asked, so the trip was the perfect time.

BBC: Ear stretching: 10 of your stories

The camera won't shoot until three seconds later, giving you ample time to crack that perfect smile.

WSJ: Digital Cameras: Say 'Cheese,' Pose and Share