镁白云母

Being an American, Donna wants to learn more about the Chinese. She's talking to her Chinese friend, Jeff. D: Hi, Jeff! What's up? J: Nothing much. What about you? D: Same as usual. Here, have a stick

发表于:2018-12-08 / 阅读(245) / 评论(0) 分类 赖世雄中级美国英语

26After the plague the Lord said to Moses and Eleazar son of Aaron, the priest, 2Take a census of the whole Israelite community by families-all those twenty years old or more who are able to serve in the army of Israel. 3So on the plains of Moab by t

发表于:2018-12-30 / 阅读(65) / 评论(0) 分类 民数记

By Carol Pearson Washington, DC 06 February 2008 Recent studies show that cigarette smoking is one of the most significant factors leading to gum disease. And now, new research indicates smoking marijuana also promotes gum disease even for those who

发表于:2019-02-02 / 阅读(57) / 评论(0) 分类 VOA常速英语2008年(二月)

今天要讲的习惯用语都有这样一个关键词汇: gum。 Gum虽然是个只包括三个字母的简短的词,但是它的意思可不少。比方说,gum可以指嘴里嚼的口香糖,或者是象口香糖那样粘胶似的物质。这时

发表于:2019-02-05 / 阅读(93) / 评论(0) 分类 美国习惯用语

RIO DE JANEIRO, Sept. 27 (Xinhua) -- The leader of Fluminense's defense, Gum was announced on Tuesday to need a period of two months to recuperate from a detached tendon in his upper right thigh. With only 12 rounds remaining in the 2011 Brazilian Ch

发表于:2019-02-08 / 阅读(63) / 评论(0) 分类 英语新闻

Because we can't see into the Earth, we have to use other techniques, which mostly involve reading waves as they travel through the interior. 我们无法看到地球的深处,因此不得不使用别的方法,主要包括观察波在地球内部的

发表于:2019-02-25 / 阅读(60) / 评论(0) 分类 万物简史