必须对这些鸟称重，辨识雌雄并挂上标牌。The birds must be weighed, sexed and tagged.你怎样辨别一条鱼的雌雄？How can you tell what sex a fish is?鸟的雌雄通常可就其颜色予以区分.Coloring differentiates the sexes in many birds....
By measuring the motion of the galaxies in a cluster, astronomers can infer the cluster's mass.通过测量星系在一个星系团内的运动,天文学家们可以推定这个星系团的质量。They turned their telescopes towards other nearby galaxies...他们把望远镜转向附近其他星系。Space fli...
家庭之间不必敷衍应酬,可以直接了当,这是符合上天的意旨的.Entire freedom from the necessity of behaving agreeably was included in the Almighty's intentions about families.她仿佛到现在还在踌躇,是否应该拂逆她爸爸的意旨,去过音乐生涯.She seemed still to be trying to decide wh...
He took that as an auspice of happiness.他把那看作是幸福的征兆.It is the symbol of dignitary , reverence, and auspice.是权贵, 尊严和吉祥的象征.He took her gentle words as an auspice of happiness.他把她话当作是幸福的吉兆....
He was big and brawny with soulless eyes.他身材高大，肌肉发达，一双眼睛冷漠无情。He was a great brawny brute of a man.他是个魁梧壮实、粗野的人。The blacksmith has a brawny arm.铁匠有强壮的胳膊。...