单词：upsert
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一个英语单词可分为三部分：前缀（prefix）词根（root）后缀（suffix）。位于词根前面的部分就是前缀。前缀，可以改变单词的意思。 immigrate = im + migr（迁移）+ ant 向内迁入 v. 移居入境 对比：
英语PK台
一个英语单词可分为三部分：前缀（prefix）词根（root）后缀（suffix）。位于词根前面的部分就是前缀。前缀，可以改变单词的意思。 implement = im + ple（满；plenty adj. 满的）+ ment 使圆满，使成功
英语PK台
A: Did you enjoy your meal? B: Yes, we really enjoyed it. A: May I interest you in some dessert? B: Yes, that sounds great. A: Well, we have chocolate mousse cake, homemade fresh strawberry shortcake, and a spicy rum apple crisp for our specials. B:
英语情景对话-餐厅
A: My name is Mary, and I will be your waitress tonight. B: Thank you, Mary. We have been looking forward to trying out this restaurant. A: Before your main course, would you like to order an appetizer? B: Sure, that sounds great. Where are your appe
英语情景对话-餐厅
A: Did your meal meet with your approval? B: Our meal was absolutely perfect! A: How about a dessert to top off that wonderful meal? B: Dessert sounds perfect, but I would like to split something with my friends. A: On this evening's dessert list, we
英语情景对话-餐厅
NOEL KING, HOST: This is a crucial time for Brazil. In a couple months, Brazilians will elect a new president. It's not clear yet who will win. The country is trying to dig out from a huge corruption scandal and the worst recession in its history. NP
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