单词：laser tip
单词：laser tip 相关文章
Five Did you tip the bellboy? 你付小费给那个服务生了吗？ 1 Introduction A It is the custom to give tips to waiters in restaurants and taxi drivers. 在餐馆给服务员小费、给的士司机小费被认为是习俗。 B It is also American custom when visiting friends t
零距离美语会话
By Carol Pearson Washington 30 April 2008 Ten years ago, the U.S. Food and Drug Administration approved LASIK, eye surgery with a laser that enables people to see without glasses. But about five percent of LASIK procedures fail, and those patients ca
VOA常速英语2008年（四月）
I once read an essay by Joseph Epstein in which he describes the glee and suspense in watching a stranger read his essay． Its happened to many novelists too the coincidental （dreamed－about） situation where you encounter a stranger reading pag
英语作文
By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti
VOA常速英语2007年（十一月）