A bizarre drone designed to take the hassle out of walking your dog is being advertised by an online retailer.一家线上零售商公布了一则广告，宣传一款可以老大人遛狗的奇特无人机。

A VACCINE that could deal a serious blow to seven in 10 lethal cancers has been developed by scientists.科学家研发出有一种疫苗，可有力地抗击70%的可怕癌症。

为全面提高学生的综合素质，非常丰富学生的课余生活，营造身体健康向下、富裕时代特色的校园体育文化。

最差的茁壮必须在生活中去领悟。