The government says establishing cattle settlements, or RUGAs, for the herders will address the issue.

尼日利亚政府表示，设立牧民专属定居点（即鲁加定居点" 计划）可以解决这一问题。

Its muscular wall has many folds called rugae that can contract when the bladder is emptied of urine and can expand when it is filled with urine.

膀胱壁有许多皱褶，称为皱襞；当膀胱空虚时皱缩，当膀胱充盈时扩张。

When the stomach is empty, the mucous membranes lining its walls are highly folded; buried within these folds, or rugae, are numerous digestive glands.

当胃是空着的时候其内壁上的粘膜高度折叠; 许多消化腺位于这些褶皱或皱褶内。