语法与词汇To the casual observer, dust seems to act in a totally random fashion, moving aboutchaotically without fixed direction
语法与词汇It is against the law for car drivers to honk their horns except avoid an accident and for garbage trucks to start their rounds before 6 am
语法与词汇There seemed to be an extensive________ on agriculture in Roman times which maintained a pre-eminent position until comparatively recently
语法与词汇In fact, more than 75 percent of all major corporations report that they monitor their employees use of E -mail and Internet access either by spot-checking or constant surveillance
语法与词汇Three geologists leading Chinese attended the conference and took part in a very stimulating panel discussion
语法与词汇Effective communication is an________ part of qualifications for a good teacher
语法与词汇Migrants were among the large mob blamed for numerous sexual assaults on women on New Years Eve in Cologne, according to an ________police report leaked to German media
语法与词汇It was her view that the countrys problems had been exacerbated by foreign aid， so asking for suchassistance would be counterproductive
语法与词汇The party leaders doubted that they had enough votes in both houses of Congress to ratify the constitutional amendment
语法与词汇Irrespective on its disadvantages, however, genetic engineering has proliferated swiftly
语法与词汇It is imperative that all accounts of the Property Management Company should be made________to all the owners
语法与词汇There are two sorts of obscurity that you find in writers who have never taken the trouble to learn to write clearly
语法与词汇When our coming of the Space Age, a new dimension has been added to the study of the planets in the solar system and beyond
语法与词汇Living in a world in which undeclared aggression, war, hypocrisy, and anarchy are part of our daily lives, we all want a code to live by
语法与词汇A study found that the environmental costs of producing and recycling paper cups were as high as, if not higher than, to produce and recycle polystyrene cups
语法与词汇The environmentalistswarning against the blatant pursuit of industrialization without caution seems especially prescient
语法与词汇What a great deal of initial confusion, the anti-war demonstrators decided protesting inside the administration building instead of in the gymnasium
语法与词汇Their sketches on Victorian manners and a Polite Victorian House are a hilarious way to introduce students to the many strictures placed upon the middle and upper classes
语法与词汇Our knowledge of the oceans a hundred years ago was confined to the two-dimensional shape of the sea surface and the hazards of navigation in depth of the shallow water close to the land
语法与词汇If you are not temperate in your eating in spring, you may gain excessive weight and look obese in summer