These small square stones became a problem for the building and continued to fall off the face for 40 years until a major renovation was undertaken.
这些方形的小石板成了大楼的问题，四十年来不断从外墙脱落，直到一项重大的翻新工程开始进行。
3
The reality is that these "contracts" never produce the desired result; they simply define the battlefield on which opponents will squareoff as soon as things go wrong.