小心铅笔的尖端，因为它容易折断。

Be careful with the ___tip of the pencil, as it can break easily.

触摸热表面后，她感到指尖一阵剧痛。

She felt a sharp pain at the ___tips of her fingers after touching the hot surface.

这次探险旨在到达该岛屿的最北端。

The expedition aimed to reach the northernmost ___tip of the island.