语言交流通常需要词汇，语法与语调的多重结合，而用手势交流并不要求你在这方面有多精通。
'Unlike a spoken language that requires multiple combinations of vocab, grammar and tone, you don't have to be an expert to communicate with your hands.
正如我们所认识到的，疟疾是一种极其复杂的疾病，只有将全面的多重干预措施结合在一起才能将其挫败。
As we have learned, malaria is an extremely complex disease that can be defeated only through a comprehensive mix of multiple interventions.
随着越来越多的模式可被重复使用，在开发包含多重低层的模式解决方案时进行模式结合就变得越来越普遍化。
As more patterns are available for reuse, combining patterns can become a more common practice when the solution that you are developing involves multiple lower-level patterns.
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