单词：extraoral tracer
单词：extraoral tracer 相关文章
More oral practice [00:21.33]更多的口头练习 [00:23.07]In the supermarket [00:25.04]在超级市场 [00:27.01]You are in a supermarket with your parents. [00:29.05]你与你的父母在一家超级市场。 [00:31.09]What are you going to buy?
沪教版牛津小学英语六年级
More oral practice [00:23.14]Listen and read [00:26.70][ei] a baby favourite [00:33.85]a-e grade space [00:38.43]ai sail paint [00:43.47]ay lay stay [00:48.43]eigh eight weight [00:53.11][ai] i pilot tiger [01:00.68]i-e line white [01:06.25]y fly sky
沪教版牛津小学英语五年级
Are You Enjoying Your Stay Here 你喜欢呆在这里吗 A: Thank you for taking the time to be interviewed. Is this your first visit to America? 谢谢你抽时间来面试。这是你第一次来美国吗？ B: No, this is my second visit. I first
突破英文对话
SCIENCE REPORT – February 13, 2002: Oral Health Study By George Grow This is the VOA Special English SCIENCE REPORT. A new report examines the problem of tooth and gum disease in the United States.
科技之光
By Jessica Berman Washington 27 November 2007 Endemic cholera, a potentially fatal diarrheal disease found in the world's poorest countries, could be effectively controlled by orally vaccinating half of the affected populations once every two years f
VOA常速英语2007年（十一月）
I must pause for one fast second and say a fast word about oral contraception. 我必须打断一下，很快地说一句关于口头避孕的事。 I was involved in an extremely good example of oral contraception two weeks ago. 两星期前，我碰到
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