在巴西脊髓灰质炎实际上已经根除。Polio has been virtually eradicated in Brazil.脊髓灰质炎疫苗挽救了数以百万计的生命.The polio vaccine has saved millions of lives.1995年,已消灭脊髓灰质炎.By 1995 poliomyelitis had been totally eliminated....
他太累了，不得不取消一些约会。He had to cancel some engagements because of tiredness.她想知道之后他们要去哪里约会。She wondered where they were going to rendezvous afterwards.他上大学的时候才真正开始和女孩子约会。He only really started going out with girls at college....
Music rang out adding to the gaiety and life of the market.音乐响起来了，给市场增添了一份快乐和生机。Her manner professed a gaiety that she did not feel.她的神态显出一种她并未实际感受到的快乐。Smiles, nods, and cheerful faces added to the general gaiety.微笑、点头和喜...
Vitamin B assists in red-blood-cell regeneration.维生素B可以促进红细胞再生。This chemical assists in construction of muscle, bone and other tissues.这种化学物质有助于建造肌肉 、 骨骼和其它组织.The congregation assists at divine service.会众参加圣礼....
Sontag has always been that rarity, a glamorous intellectual.桑塔格一直是那种兼具美貌与智慧的人中龙凤。It was a real prize due to its rarity and good condition.因为稀有并且品相完好，它价值连城。Flowering plants were making their first appearance, but were st...