扇形

The bedrooms also have cross ventilation via fanlight windows above doors.

卧室则通过门上窗对流通风。

The troops stormed the enemy's trenches and fanned out across the fields.

部队猛攻敌人战, 田野上呈散开。

Note the clear vacuoles in the colloid next to the epithelium where the increased activity of the epithelium to produce increased thyroid hormone has led to scalloping out of the colloid.

临近上皮细胞胶质内可见清晰泡，此处上皮组织细胞活跃，甲状腺激素分泌增多，成胶质边缘。