The wax of the ear is essential for flexibility of the ear drum; if an extra amount accumulates, it can be got rid of by bathing the ear in hot water, since the heat will melt the wax. 伯莎M.克拉克.科學通論.
But man can and does select the variations given to him by nature, and thus accumulates them in any desired manner. 查爾斯·達爾文.物種起源.
It gradually accumulates around these, until the heaps become very large, often forming dunes or sand-hills. 佚名.神奇的知識之書.
About a gill of the sap accumulates in each cup in the course of a day, and it is then transferred to receiving vessels and taken to camp. Edward W. Byrn.十九世紀發(fā)明進展.