The hummingbird is the only bird that can fly backward.蜂鸟是唯一能倒退向后飞的鸟.The wings of a bee and those of a hummingbird are analogous.蜜蜂的翅膀和蜂雀的类似.The hummingbird perches on a twig of the hawthorn.小蜂鸟栖在山楂树枝上.A hummingbird is p...
The hummingbird perches on a twig of the hawthorn.小蜂鸟栖在山楂树枝上.The wings of a bee and those of a hummingbird are analogous.蜜蜂的翅膀和蜂雀的类似.The hummingbird is the only bird that can fly backward.蜂鸟是唯一能倒退向后飞的鸟....
They suffer from health problems and fear the long term effects of radiation...他们遭受着健康问题的困扰并且害怕辐射的长期影响。His term of office as president will expire next year.他的总统任期明年将届满.the expiry of a fixed-term contract定期合同的满期Frank has...
Many other insects also produce formic as well as other kinds of acid.其他多种昆虫也能制造甲酸或其他种类的酸.Production 1,2 hydroxy beta 4 - formic acid, a beta consignment sales produced products.生产1、4-二羟基萘甲酸 、 甲萘醌,销售自产产品.An example for w...
Randall would just now be getting the Sunday paper.兰德尔这个时候应该正在拿周日的报纸。I had high hopes that Derek Randall might play an important part.我对德里克·兰德尔发挥重要作用寄予厚望。Randall's illness was only bad luck.兰德尔生病纯粹是时运不济。...
只有针灸、脊椎指压治疗或者推拿术才能实现彻底治愈。A permanent cure will only be effected by acupuncture, chiropractic or manipulation.这两种药物都可以延缓艾滋病病情发展，但是都不能治愈这种疾病。Both drugs slow the progression of HIV, but neither cures the disease.如果及早发现，大多数皮...
All commercial nuclear power is provided by fission at the present time.目前所有的商用核动力都是通过核裂变产生的.Caesium - 137 is a radioactive isotope, formed mainly through nuclear fission.铯-137是一种放射性同位素, 主要由核分裂产生.The fission of the cell ...