他大约有几个办法来解决这个问题，包括把他的家人搬到旧金山，但都没有成功。
He had about several ways to solve the problem, including moving his family to San Francisco, but none of them worked.
用测试驱动的方法来开发一个测试框架不是一点挑战都没有，但当你完成了基础工作后，它会非常之顺利。
Developing a test framework in test-driven way isn't without its challenges, but once you have the basics working it goes surprisingly smoothly.
到现在为止，包括英国在内的一些国家，收集数据都没有明确的条文来指导，但都在通过法律逐渐完善其统计制度。
Countries that have managed until now to produce statistics with no specific legal framework, including Britain, are increasingly strengthening their statistical systems with legislation.
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