均方误差的期望值

发表于:2018-12-07 / 阅读(81) / 评论(0) 分类 知性英语

AS IT IS 2016-02-29 Egypt Says It Sentenced Boy, 4, to Prison in Error The Egyptian military admitted last week it made a mistake when sentencing a 4-year-old boy to prison for life. A mistaken identity and confusion inside the Egyptian court system

发表于:2018-12-08 / 阅读(67) / 评论(0) 分类 2016年VOA慢速英语(二)月

NEW YORK, Aug. 30 (Xinhua) -- French Open champion Li Na committed 54 unforced errors and was eliminated in the first round of the U.S. Open by 53rd-ranked teenager Simona Halep on Tuesday. Li, seeded sixth, lost 6-2, 7-5 to Romania's Halep, sufferin

发表于:2019-01-11 / 阅读(88) / 评论(0) 分类 英语新闻

The script of this programme 本节目台词 Shakespeare's statue in Leicester Square John: Hello and welcome to Leicester Square for this edition of On The Town from Learning English, I am John and with me is my colleague Lily. Lily: 大家好! 我是杨莉,

发表于:2019-01-16 / 阅读(67) / 评论(0) 分类 都市掠影

Larry在帮李华写一篇报告,因为李华的电脑出了问题,她写的整个报告都丢了。今天李华会学到两个常用语:back to square one和killer. LH: 电脑出了问题,我写

发表于:2019-01-30 / 阅读(52) / 评论(0) 分类 美国之音《流行美语》

【中文解释】 errorist是指总是犯错却自认为正确的人,错误份子,瞪眼睛说瞎话。 【英文解释】 Someone who repeatedly makes mistakes. Says stuff he believes is true, but anyone with common sense can see he's wrong. A

发表于:2019-02-09 / 阅读(67) / 评论(0) 分类 美国俚语