杰克·弗罗斯特的故事 Now, from VOA Learning English, it's time for Words and Their Stories.

医生担心碘缺乏现象卷土重来 A century ago, iodine deficiency affected children across much of the United States.

应用与申请 This week on Ask a Teacher, we answer a question from Krystyna in Poland.

历史学家铭记吉米·卡特总统援助阿富汗叛军的努力 Many historians say U.S. President Ronald Reagan helped defeat the former Soviet Union and end the Cold War.

在中国，人们为了健康和快乐在冰冷的河水中游泳 From VOA Learning English, this is the Health & Lifestyle report.

格陵兰在变暖的世界中占据重要地位 Greenland is the world’s largest island and a self-governed territory of Denmark.

在家中种植空气凤梨无需土壤 If you are looking for houseplants that do not take up a lot of space and are easy to grow, air plants might be the right choice.

什么是装饰艺术风格，为何它再次流行起来？ Art Deco is an international artistic style that was popular in the 1920s and 1930s.

欧洲和日本的航天器探测水星极地 A spacecraft recently sent back some of the best close-up pictures yet of the planet Mercury’s north pole.

随着年龄增长，学会更好地保持平衡，预防跌倒 To age well, doctors say we should remember the importance of good balance.