Используйте «whittle down» в предложении

1. when she started to whittle down the shortlist

2. For they longed to whittle down life's flourishing nursery to one homogenised and inbred collective

3. • Whittle down some more

4. If his system didn’t have a strong winning edge over the market, his repetitive losses – combined with commission costs – would whittle down his account until it was ruined and too small to trade effectively