0 a limb for swimming, especially of a seal, walrus etc. -- ploutev
1 a kind of rubber or plastic shoe, worn when swimming, which is shaped like the flipper of a seal etc -- ploutev
a pair of flippers.
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.
Můžeme to dokončit krok za krokem, ať je cesta jakkoli dlouhá, a nelze ji dokončit, ať je cesta jakkoli krátká, pokud si ani neoznačíte svou stopu.