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ion on metals, and the ability to turn certain blue vegetable dyes red. ,它在溶于水時(shí)具有強(qiáng)烈 的氣味和對(duì)金屬的腐蝕性,并且能夠使某些藍(lán)色植物染料變紅。 12. Billie Holiday’s reputation as a great jazzblues singer rests on her ability to give emotional depth to her songs. 12. Billie Holiday’s作為一個(gè)爵士布魯斯樂(lè)杰出歌手的名聲建立在能夠賦予歌曲感情深度的能力。 13. Essentially, a theory is an abstract, symbolic representation of what is conceived to be reality. 。 14. Long before children are able to speak or understand a language, they municate through facial expressions and by making noises. ,很久就會(huì)通過(guò)面部表情和靠發(fā)出噪聲來(lái)與 人交流了。 15. Thanks to modern irrigation, crops now grow abundantly in areas where once nothing but cacti and sagebrush could live. (技術(shù)設(shè)施 )之賜,農(nóng)作物在原來(lái)只有仙人掌和蕎屬科植物才能生存的地方旺盛的生長(zhǎng)。 16. The development of mechanical timepieces spurred the search for more accurate sundials with which to regulate them. ,以便校準(zhǔn)機(jī)械計(jì)時(shí)器。 17. Anthropology is a science in that anthropologists use a rigorous set of methods and techniques to document observations that can be checked by others. ,因?yàn)槿祟悓W(xué)家采 用一整套強(qiáng)有力的方法和技術(shù)來(lái)記錄觀測(cè)結(jié)果,而這樣記錄下來(lái)的觀測(cè)結(jié)果是供他人核查的。 18. Fungi are important in the process of decay, which returns ingredients to the soil, enhances soil fertility, and deposes animal debris. ,而腐化過(guò)程將化學(xué)物質(zhì)回饋于土壤,提高其肥力,并分解動(dòng)物糞便。 19. When it is struck, a tuning fork produces an almost pure tone, retaining its pitch over a long period of time. ,產(chǎn)生幾乎純質(zhì)的音調(diào),其音量經(jīng)久不衰。 20. Although pecans are most plentiful in the southeastern part of the United States, they are found as far north as Ohio and Illinois. 們。 21. Eliminating problems by transferring the blame to others is of