1·This was the first suggestion of algal defenses against grazing.
这是藻类抵御放牧的第一次迹象。
2·From there, they could hear the peaceful-sounding bells of the grazing cattle below.
他们可以在那里听到下面放牧的牛群发出的祥和的铃铛声。
3·For instance, several kinds of birds feed on insects flushed out of the grass by grazing cattle.
例如，几种鸟类以被放牧牛驱赶的昆虫为食。
4·And just outside the developed area, there would usually be an open area of some sort for grazing animals and also group activities.
而在发达区域之外，通常就会有一个开放区域供放牧和集体活动。
5·These practices include grazing animals on grasses grown from the pastureland's natural seed bunk, and fertilized by the cows' own fertilizer.
这些做法包括放牧动物吃从牧场的天然种子铺上生长的草，并用奶牛自己的肥料施肥。