granule|granules

咖啡颗粒在热水中迅速溶解。

The coffee ___granules dissolved quickly in hot water.

咖啡里的糖粒很快就溶解了。

The sugar ___granules in the coffee dissolved quickly.

白细胞中的颗粒帮助抵抗感染。

The ___granules in white blood cells help fight infections.