做东西的时候，总要多备上一些——额外的材料、额外的部件、额外的空间、额外的饰面。这些额外的东西可以为错误提供备份、减轻压力，还可以为未来储备资源。它们是最便宜的保险。

"The beauty of cinema lies in its ability to capture the essence of human emotions."

The core of Pinduoduo is "group buying," allowing users to participate in shopping through social means.

Borders are scars on the face of the earth, marks of violence and division.