1. The existence of both racial and sexual discrimination in employment is well documented, and policy makers and responsible employers are particularly sensitive to the plight of the black female employee on the theory that she is doubly the victim of discrimination.
大量文献证明，就业中存在着种族和性别歧视；政策的制定者和有责任心的雇主对黑人女职员的境遇特别敏感，因为，从理论上来说，她们遭受着双重歧视。`(e.g. 1990 英语一 Text 3)` (就业歧视/交叉性)
2. Moreover, State distribution of residence is important because blacks are overrepresented in the South, where wage rates are typically lower than elsewhere and where racial differentials in income are greater.
而且，居住在哪个州也很重要，因为南部黑人比例大，工资通常比其他地方低，种族之间的收入差别较大。`(e.g. 1990 英语一 Text 3)` (就业歧视/地域因素)
3. Recently, there have been some imaginative attempts to make polycrystalline and ribbon silicon which are lower in cost than high-quality single crystals; but to date the efficiencies of these apparently lower-cost materials have been unacceptably small.
最近，有些人试图研制多晶硅和带状硅，这些材料比高质单晶硅成本小，但是，迄今为止，这些成本明显小的材料的效能低得不实用。`(e.g. 1994 英语一 Text 4)` (科技/太阳能材料研发)
4. Although many scientists were aware of the very low cost of amorphous solar cells, they felt that they could never be manufactured with the efficiencies necessary to contribute significantly to the demand for electric power.
许多科学家虽然已经认识到非晶硅太阳能电池的低成本，但是他们也感到，要生产出这样的电池并使之产生足够的功效、在很大程度上满足对电能的需要，是不可能的。`(e.g. 1994 英语一 Text 4)` (科技/太阳能材料研发 - 早期质疑)
5. Already, solar cells with efficiencies well above 6 percent have been developed using amorphous materials, and further research will doubtlessly find even less costly amorphous materials with higher efficiencies.
用非结晶体材料研制的太阳能电池的使用功效已经远远超过6%，未来的研究必将找出成本更低的但功效更高的非结晶体材料。`(e.g. 1994 英语一 Text 4)` (科技/太阳能材料研发 - 进展)
6. This imaginary task gives some idea of the challenge facing biologists in the United States and elsewhere as they embark on a monumental project: deciphering all the coded information in the human genome, all the genes in a human cell.
美国和世界各地的生物学家面临一项重大工程的挑战，这个假想的任务使人们对这个挑战的强度获得一些认识，这个挑战就是：破译人体基因组中的编码信息。`(e.g. 2003 英语一 Text 2)` (生物技术/人类基因组计划)
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