Language is not a cultural artifact that we learn the way we learn to tell time or how the federal government works. Instead, it is a distinct piece of the biological makeup of our brains.

Safety and environmental protection are the lifelines of an enterprise and must never be neglected.

“柠檬问题”指的是当卖家比买家掌握更多信息时，评估产品质量的困难。

我们必须以与面对面治疗相同的严谨和同情心设计数字工具。