测试客户端为定义和保存测试数据提供了一种简洁的方式，在执行早期的消息流功能测试时，它最有价值。

The test client provides a neat way of defining and saving test data, which is most useful when performing early message flow functional testing.

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了解它的栽培、保存方式、药用价值是很重要的。

Understand its cultivation, preservation method, medicinal value is very important.

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