0 a small round lump of a substance, especially partly digested food: --
1 a single dose (= measured amount) of a drug: --
Patients were given boluses of 20 or 30 μg of fentanyl.
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.