A sharp razor gives a close shave.

剃刀锋利刮得就干净。

Pare off the rind from the orange using a sharp knife.

用锋利的刀子削去橙子皮。

This knife is very keen.

刀非常锋利。

He ground the knife sharp.

他刀磨锋利。

When Larkshimi tried to killed the chital, she has to avoid the sharp buckhorn which will be very dangerous to the tiger.

当老虎试图咬死斑鹿的时候，就要避开锋利的鹿角。