13. They were also pioneers who carried with them everything they would need to build new lives—their livestock, taro seedlings and stone tools.
他们也是先驱者，带着一切建立新生活所需的东西——他们的牲畜、芋头苗和石器。
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14. The raising of livestock is a major economic activity in semiarid lands, where grasses are generally the dominant type of natural vegetation.
在半干旱地区，草地通常是最主要的天然植被，而该地区主要的经济活动是家畜饲养。
youdao
15. The increased productivity from farmland made some countries self-sufficient in grain and livestock, and offered effective protection against famine.
农田生产力的提高使一些国家在粮食和牲畜方面能自给自足，并为防止饥荒提供了有效的保护。
youdao
16. That supplies 80 percent of what is consumed, so even covering the whole country in livestock farms wouldn't allow us to cover all our meat and dairy needs.
这提供了80%的消耗量，因此，即使将牲畜养殖场覆盖到整个国家，也不能完全满足我们肉类和乳制品需求。
youdao
17. Corn is extensively used as feed for livestock, and because profit margins are tight in the livestock business, many farmers are expected to leave the business.
玉米被广泛用作牲畜饲料，由于畜牧业的利润率很低，许多农民预计将退出这一行业。
youdao
18. A United Nations report says reaching that goal will require major increases in intensive, high-efficiency livestock operations for both meat and dairy production.
联合国的一份报告说，要实现这一目标，就必须大力增加密集高效的畜牧业生产，以生产肉类和奶制品。
youdao
19. That's why environmental critics are calling instead for reductions in global livestock production, and urging people to consume less, not more, meat in their diets.
这就是为什么环境评论家反而呼吁减少全球牲畜生产，并敦促人们减少而不是增加他们饮食中的肉类消耗。
youdao
20. Livestock could be driven across the mountains, but the cost of transporting bulky grains in this fashion was several times greater than their value in eastern markets.
牲畜可以被赶过山区，但以这种方式运输大量谷物的成本要比它们在东部市场的价值高出好几倍。
youdao
21. In what's probably the craziest headline I've ever written, I've reported that advances in livestock protection are happening with scientists painting eyes on the butts of cows.
22. If the method works, it could provide farmers in Botswana—and elsewhere—with a low-cost, sustainable tool to protect their livestock, and a way to keep lions safe from being killed.
23. Robots are currently under a two-year trial in Wales which will train "farmbots" to herd, monitor the health of livestock, and make sure there is enough pasture for them to graze on.
24. They farm fungi, raise aphids as livestock, launch armies to war, use chemical sprays to alarm and confuse enemies, capture slaves, engage in child labour, exchange information ceaselessly.
25. This was important to her as an equipment designer for the livestock industry.
作为一名畜牧业设备设计师，这对她来说很重要。
youdao
26. I didn't really understand his world either: He was a livestock trucker, and I thought that I would surpass anything he had accomplished by the time I walked across the stage at high school graduation.
27. The consequences of an excessive number of livestock grazing in an area are the reduction of the vegetation cover and the trampling and pulverization of the soil.
在一个地区过度放牧的后果是植被覆盖的减少和对土壤的践踏和粉碎。
youdao
28. Livestock wagons have been painted.
已经对牲畜货车涂了油漆。
youdao
29. West says that drones can be used for crop-dusting and tracking livestock.
