- 重点词汇
- soconj.所以;（表示因果关系）因此;（表示目的）为了，以便;其次，然后;<古> 只要;同样
- usefuladj.有用的，有益的，有帮助的;令人满意的;
- topsoiln.表土（层），耕作（层）;耕层;
- goodadj. 好的;优质的;符合标准的;可接受的;令人愉快的;令人满意的;合情理的;有说服力的;有充分根据的
- otheradj. 别的;其他的;（两个中的）另一个;其余的;
- inprep. 在里面;在(某范围或空间内的)某一点;在(某物的形体或范围)中;在…内;在…中;进入
- noadv. 不;否;一点也没有;
- animaln.动物，兽，牲畜;<俚>家畜，牲口;<俚>畜生（一般的人）;兽性;
- isvt.& vi. 是(be的三单形式);
- building up堆焊;
- 相关例句
Floods can remove fertile topsoil and begin a process resulting in the loss of planting areas.
洪水可以带走肥沃的表土层,最终导致种植区域的损失.
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In many countries the loss of productive topsoil has contributed to growing food deficits.
在许多国家里,生产性表土的流失已导致日益严重的粮食短缺.
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According to scientists, it takes nature 500 years to create an inch of topsoil.
根据科学家们的看法, 自然界要用500年的时间才能形成一英寸厚的表层土壤.
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The fragile land quickly lost its topsoil and became nothing but sand and dust.
那单薄的土地很快就失去了表土,成为沙粒和尘埃.
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Under flood conditions, great amounts of topsoil are washed to receiving streams.
在洪水泛滥时, 大量表层土壤被冲刷到承受的水流中.
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Erosion, the wearing away of topsoil by wind and rain, also contributes to water pollution.
侵蚀, 服装以外的表土被风和雨, 也有助于水污染.
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Topspin spin is when the ball is spinning over itself in the direction moving forward.
许多网球选手对于落地回击上旋球有误会.我将试着简略地阐明一下.
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Topsy would hold a perfect carnival of confusion , for some one or two hours.
托普西就会恣意胡闹上一、二个小时.
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Their scrapping the contract is turning all our arrangements for the performance topsy-turning.
他们毁约,打乱了我们所有的演出安排.
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The children turned the whole house topsy-turvy when their mother went out.
当母亲不在家时,孩子们把屋里都翻遍了.
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The refusal of the actor turned all our arrangements for the performance topsy-turvy.
那个演员拒绝出台把我们整个演出安排都搞乱了.
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But that's only half the battle -- particularly in a year when finances are topsy-turvy.
但这仅是半场“战役 ” - 尤其在这个经济不景气的年头.
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