单词：two-tier system
two-tier system的用法和样例：
例句
- They help delimit the system and give a clearer picture of what the system should do.关于对象化设计同多层架构的结合中有一些问题我一直苦思不得其解。
单词：two-tier system 相关文章
Tier, tear(名词)，tear(动词)，tare, wear, weary以及其他奇怪的单词 即使是对拼写改革最忠实的反对者，看到这篇文章标题里的一串单词时也会觉得沮丧。既然可持续发展都成了单词中主要的流行语
英文语法词汇
今天我们要学的词是top-tier. Top-tier 意思是一流的。The University of Iowa's football team is looking to return to the top-tier teams in the Big 10 this season. 爱奥华大学美式足球校队鹰眼队本赛季将努力重新成为美国
英语单词荟萃
Experts have lifted the lid on how often women should wash their bras - and the results may surprise many clean freaks. 专家揭晓了女性应该多久洗一次胸罩的答案，结果令清洁狂们大吃一惊。 According to a textile expert, br
阅读空间
The employment report released by China's largest recruitment site, zhaopin.com, is based on an index which looks at job supply and demand in the country's labor market. On a national level, first-quarter job vacancies received an average of 26.1 res
英语新闻
Gaoyao in Guangdong Province is a third tier city with the population of only 700 thousand. But in the past few years, more than 5 thousand graduates from all over the country chose to work here. Feng Minqiang, Secretary of Municipal Party Committee
英闻天下
The Return of Parma FRI 22 APR 2016 Parma celebrate promotion to the third tier of Italian football
英语听力精选进阶版