小心别让仙人掌刺到你的手指。

Be careful not to let the cactus ___prick your finger.

针头刺入皮肤时会有点刺痛。

The needle ___pricks slightly when it pierces the skin.

那个家伙真是个混蛋，从来不顾及别人的感受。

That guy is such a ___prick, he never considers others' feelings.