0 a computer disc that is read by a laser (= a narrow beam of light). It can store sound, video, or computer data and programs: --
The system is intended for use with next generation optical discs, such as Blu-ray and HD-DVDs.
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Можем да го завършим стъпка по стъпка, колкото и дълъг да е пътят и не може да бъде завършен, колкото и кратък да е пътят, ако дори не маркирате отпечатъка си.