舌头上有很多小的味蕾乳头帮助我们品尝味道。

There are many small ___papillae on the tongue that help us taste flavors.

每根头发底部都有一个细小的乳突为其提供营养。

Each hair is nourished by a tiny ___papilla at its base.

这种叶子的表面有许多细小的乳头状突起，有助于吸收水分。

The leaf surface is covered with tiny ___papillae that help absorb moisture.