1.a series of 一系列的
例句:A series of technical foul-ups delayed the launch of the new product.
一系列技术问题延误了新产品的上市。
2.oil production 石油产量
例句:The first half of this year saw 10 percent increase in oil production.
上半年原油产量升幅达百分之十。
3.in order to 为了
例句:In order to transform their environment, he drew up the project with painstaking accuracy.
为了改造环境,他苦心孤诣地制订了这个计划。
4.the euro zone 欧元区
例句:A support plan has been agreed by all the countries of the euro zone.
欧元区全体成员国也通过了救援希腊的方案。