The path angled downhill and northwards.小路向山下伸展，然后向北延伸。These birds migrate northwards in spring and southwards in fall.这些鸟春天向北迁徙,秋天向南迁徙.The road runs northwards, as straight as a die.这条路笔直地向北延伸....
The road runs northwards, as straight as a die.这条路笔直地向北延伸.Europe’s economic centre of gravity shifted northwards.欧洲的经济重心向北移了。These birds migrate northwards in spring and southwards in fall.这些鸟春天向北迁徙,秋天向南迁徙.The path angle...
The male gamete could not unite with the female.雄配子不能与雌配子结合.Gametes may develop without fertilization, or meiosis may substantially precede gamete formation.配子不经过受精也可能发育,若减数分裂先于配子形成,配子也可能发育.Objective : To investigate the...