4周搞定2000+托福核心词
semipermanent = semi(半) + per(完全) + man(停留) + ent(…的) = 半完全居住的→半永久性
semicircular = semi(半) + circu(环绕) + lar(…的) = 半环绕的→半圆的
半干旱的
semiarid
常考释义
Well, shrub expansion has occurred in other environments, like semiarid grassland, and tall grass prairies.
嗯，在其他环境中也发生了灌木丛扩张现象，像半干旱的草地和茅草草原。
来源于：听力OFFICIAL9 L2adj. 半干旱的；雨量非常少的
The region is semiarid to arid in overall climate.
这个地区总体上是半干旱至干旱气候。
Alluvial fans are common in many arid and semiarid mountainous regions.
冲积扇在许多干旱、半干旱的山区很常见。
来源于：阅读OFFICIAL52 P1Species whose habitat lies in the temperate latitudes are confronted by lethal low temperatures in winter, while species dwelling in semiarid regions are exposed to long dry, hot periods in summer.
栖息地在温带地区的物种在冬季会面临致命的低温，而半干旱地区的物种在夏季会暴露于干燥、炎热的环境中。
来源于：阅读OFFICIAL40 P3As recently as 6,000 B.C. the southern frontier of the desert was far to the north of where it is now, while semiarid grassland and shallow freshwater lakes covered much of what are now arid plains.
直到公元前6,000年前，沙漠的南部边界比现在的位置要靠北很多，那时半干旱的草原和浅淡水湖泊覆盖了现在干旱的平原。
来源于：阅读OFFICIAL28 P3Well, shrub expansion has occurred in other environments, like semiarid grassland, and tall grass prairies.
嗯，在其他环境中也发生了灌木丛扩张现象，像半干旱的草地和茅草草原。
来源于：听力OFFICIAL9 L3This region has a semiarid climate, and for 50 years after its settlement, it supported a low-intensity agricultural economy of cattle ranching and wheat farming.
这里有着半干旱的气候，在人们定居50年后，它支撑了一个以畜牧业和小麦种植为主的低密度农业经济。
来源于：阅读OFFICIAL3 P2In many semiarid areas there is also a lower timberline where the forest passes into steppe or desert at its lower edge, usually because of a lack of moisture.
在许多干旱的地区存在着下行树带界线，在这里由于缺乏水分森林变成干草原，甚至在最下端会出现沙漠。
来源于：阅读OFFICIAL1 P3Estimates indicate that the aquifer contains enough water to fill Lake Huron, but unfortunately, under the semiarid climatic conditions that presently exist in the region, rates of addition to the aquifer are minimal, amounting to about half a centimeter a year.
据估计，奥加拉拉蓄水层的含水量足以填满休伦湖，但不幸的是，在目前该地区半干旱的气候条件下，奥加拉拉蓄水层的蓄水能力极低，每年仅半厘米左右。
来源于：阅读OFFICIAL3 P2The semiarid lands bordering the deserts exist in a delicate ecological balance and are limited in their potential to adjust to increased environmental pressures.
沙漠边缘的半干旱土地所处的生态环境十分脆弱，环境的压力在持续增加，而这些半干旱区域适应环境压力的能力极其有限。
来源于：阅读OFFICIAL2 P1The raising of livestock is a major economic activity in semiarid lands, where grasses are generally the dominant type of natural vegetation.
家畜的饲养是半干旱地区的一项主要经济活动，那里的草坪逐渐成为主要的天然植被。
来源于：阅读OFFICIAL2 P1以上图片仅供学习交流使用，版权归原作者所有，如有侵权，请与我方联系
