一些木蚁四处寻找嫩叶，另一些从树顶落到更靠近地面的叶子上。
Some of the insects wander off to find fresh leaves, while others fall from the tree tops on to leaves nearer the ground.
然后，在阿拉木图产生了这种精神和理智上的觉醒。 突然，初级卫生保健的一些支持者又回到旧时的选择性方法。
Then we had this spiritual and intellectual awakening that came out of Alma-Ata, and suddenly some proponents of primary health care went back to the old selective approach again.
康内斯托加式宽轮篷车的白色帆布保护货物免受恶劣天气的侵袭，篷车的底座上有很多拱形的木箍，帆布就绷在其上。
The white canvas cover on the Conestoga wagon protected the freight from inclement weather; it was stretched taut over a series of wooden hoops that arched over the wagon bed.
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