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...
Victory was dawning on the battle front.战场上出现了胜利的曙光.Now there is a dawning realisation that drastic action is necessary.现在人们开始意识到必须采取断然的行动。They turned to one another with the same expression of dawning comprehension, sur...
Avoid trips to the country while the pollen count is high.花粉计数高时，尽量避免去乡村旅行。At first we chatted agree-ably about his trips to London and Paris.一开始，我们愉快地聊起他的伦敦和巴黎之行。School trips give children firsthand experience not avail...
Squirrels are arboreal creatures.松鼠是栖于树上的动物.Squirrels like to eat hazels.松鼠喜欢吃榛子....squirrels who bury nuts and seeds.掩埋坚果和种子的松鼠Lifespans ranged from three years for the mice, to 23 or more for common backyard squirrels....