2. Take baby steps.
Tumor Biology, a journal published by Springer Nature, announced last week that it had retracted the papers after an investigation showed the peer review process had been compromised.

现在是时候制订新年旅游计划了!有“背包客圣经”之称的《孤独星球》于近日向寻找地美价廉好去处的人们推荐了2017年性价比最高的旅游胜地清单。让我们一起来看看吧。
但许多人预测将会出现经济崩盘,他们认为,旷日持久的欧元区危机加上房地产泡沫,将使相当大一部分中国工业失去盈利能力。这将暴露出各种隐藏的金融脆弱性,推动形成一场螺旋式下降。其他人认为,北京方面有充足的资源可以避免一场危机,不过他们指出,由于中国的增长模式依赖于基建和土地出售,且汇率和利率受到僵硬控制,它也许并没有所有必要工具。
Apple CEO Steve Jobs poses with the new iPhone 4 during the Apple Worldwide Developers Conference in San Francisco, California in this June 7, 2010

“The First Amendment’s Free Speech protections apply only to violations by public entities, and since Harvard is a private university the First Amendment does not apply,” she said.
['d?u:?lri]

沪深300指数(CSI 300)包含了沪深两市交易的300支主要A股,其于2016年交易首日下跌7%,根据新推行的市场熔断机制,意味着当日股市交易已结束。
Verification and evaluation should be enhanced before publication, Wang said.

Adriana Lima sizzled in red, while Alessandra Ambrosio looked amazing just months after giving birth.
Time Management
Wang Dengfeng, director of the Physical Education, Health and Art Department under the Ministry of Education (MOE) and Vice Chairman of the China Football Association, was quoted as saying that football experts are designing curriculums for more than 360 training programs in primary and secondary schools.

我国火车票购票官网12306网站已成为世界最大火车票购票网站,2017年该网站交易总量达35亿张车票。