Farmers should be guardians of the countryside.农民应是乡村的保卫者。The police are guardians of law and order.警察是法律和秩序的护卫者.She is a satisfaction to the parents and guardians of the prentices.那个学徒的父母和监护人对她很满意....
Jurassic Park had broken all box office records.《侏罗纪公园》打破了所有票房纪录。Okay , now the Mastodon is from the semi - late Jurassic period.接下来这头乳齿象是来自侏罗纪中后期.And on your left, you have Tyrannosaurus Rex, a carnivore from the Jurass...
从中提取的松香和鞣酸是化学工业上很需要的.The risin and tannin that can be extracted from it are sought by the chemical industry.从3点钟以后,它们就燃烧着松香.From three o'clock onward they would be burning resin.在实验室内用一 步法 合成了松香改性壬基酚醛树脂.Rosin modifi...
In acoustics he studied the propagation of sound and musical consonance and dissonance.在声学中,他研究了声的传播和音乐的和谐与不和谐.Psychologists talk about ego , id, and cognitive dissonance.心理学家讨论利己主义 、 本能冲动和感知不协调.to produce a dissonance.产...