Randolph's work was exclusively concerned with the effects of pollution on health.伦道夫的著作专门论述污染对健康的影响。...the articles that formed the basis of Randolph's book...构成伦道夫此书的基础的那些文章After a three-weekend courtship, Pa...
One laboratory stock of Drosophila melanogaster has very reduced or vestigial wings.果蝇的一种实验品系,翅膀缩小,称为残翅.THREE NEW SPECIES OF NICRICOLOR SPECIES - GROUP OF DROSOPHILA ( LORDIPHOSA ) ( DIPTERA: DROSOPHILIDAE )黑色拱背果蝇种组三新种记述...
这些工作组将按惯例工作。These working parties will be going over well-trodden ground.按惯例，这一领导职务的副职总是由女性担任。By convention the deputy leader was always a woman.他们按惯例前往墓地悼念死者。They made their way to a graveyard to pay their traditional r...
Many of the houses remain unsold.这些房屋有许多尚未售出。Thirteen per cent of Christie's coin and banknote auction went unsold.佳士得13%的硬币和纸币拍卖流拍。...piles of unsold books...一堆堆卖不出去的书Prices have been cut by developers anxious to o...