老外口中的“dead weight”究竟啥意思？

When hunger strikes between meals, deciding whether to snack is a common challenge for anyone watching their weight. In fact, ...

If you are trying to lose weight, climbing stairs as a regular exercise might be for you. Stairs are available in many places ...

8天变8个月！已滞留太空150多天的美国NASA宇航员布奇·威尔莫尔（Butch Wilmore）和苏尼·威廉姆斯（Suni Williams），还将在国际空间站滞留到明年2月。空间站内，各类物资紧缺，两位宇航员的生活质量成为关注焦点。