以下是重构后的段落结构：

全部四级和六级真题阅读翻译：

- Park says he built South Korea a luxury vehicle, "like Mercedes or BMW".

- Songdo appears in the most famous music video ever to come out of South Korea.

- Songdo, a city built from scratch in South Korea, is one of Kasarda's prime examples.

- The district has become increasingly popular with immigrant families from China, India and Korea.

- South Korea, which operates state-of-the-art bases here, is increasing its fishing of krill (磷虾), found in abundance in the Southern Ocean, while Russia recently frustrated efforts to create one of the world's largest ocean sanctuaries here.

- South Korea opened its second Antarctic research base in 2014, describing it as a way to test robots developed by Korean researchers for use in extreme conditions.

- Internet rescue camps in South Korea

阅读原文：

出自-2016年12月阅读原文：South Korea opened its second Antarctic research base in 2014, describing it as a way to test robots developed by Korean researchers for use in extreme conditions.

出自-2016年12月阅读原文：Internet rescue camps in South Korea。

Korea and China have become increasingly concerned about the growing number of children addicted to screen time. The issue is so pressing that they are trying to find ways to address it. In fact, in 2012, there were so many people interested in attending the Korea Development Conference that it was difficult for them to sign up for it all. Similarly, the earliest printed book in the world was written in China during the year 868, while metal type was first used in Korea at the beginning of the 1st century. However, the first printing press using movable metal type was invented in Germany around the year 1450.

In Korea, cafes offer more than just a place to relax and enjoy a cup of coffee. They also provide opportunities for socializing and networking. This is especially true in the "rice bowl" cultures of China, Japan, Korea, and Vietnam, where food is usually eaten with chopsticks. Moreover, researchers from Seoul, South Korea conducted a study on mice that involved feeding them dried milk powder made from cows milked both during the day and at night. This highlights the importance of finding solutions to this problem as it could have far-reaching implications for our health and wellbeing.