This is a humming - bird moth.这是蜂鸟科的天蛾.There was a low humming sound in the sky.空中传来一阵低沉的嗡嗡声。The guard stopped his humming and turned his head sharply.守卫停止了哼唱，猛地转过头。The bees were humming around the hive.蜜蜂在蜂箱周围嗡嗡地叫.Hummi...
尽管西比斯大发牢骚，但妈妈不会放她一马。Though Sybbis complained bitterly, Mama would not let up on her.他特别爱发牢骚，老是抱怨这抱怨那。He was a terrible complainer — always moaning about something.这被认为是一种限制妇女发牢骚的方式。This was seen as a way of restricting w...
...a penniless refugee.一文不名的难民Overcrowding and poor sanitary conditions led to disease in the refugee camps.过度拥挤和恶劣的卫生状况导致难民营中出现疾病。They say they will stay to rebuild their homes rather than retreat to refugee camps...他们说...
Dangerous undertows make swimming unsafe along most of the coastline.由于存在着危险的下层逆流，在大部分海岸线附近游泳都不安全。This is some of the most exposed coastline in the world.这里的海岸线属于世界上最无遮蔽的一段了。The oil washed ashore on roughly 1,000 miles o...
Acid rain is not straightforwardly attributable to the burning of coal.酸雨并非简单地由烧煤造成。Nor is acid rain always, and universally, a bad thing.酸雨也并非在任何情况下都是坏事。Cars cause pollution, both smog and acid rain.汽车造成的污染既有烟雾也有酸雨。...
Again, after the lumber has been separated, the grader assigns a grade.木材分开后, 分级工再次标记等级.The movie tells the story of fifth grader Jesse Aarons.电影讲述了五年级学生杰西·阿伦斯的故事.For Alex being an eighth - grader is an exciting thing.对于...