从本质上讲，这才是决定性的考验。

Essentially, this is the acid test.

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决定性的考验在于是否确有人会买这种产品。

The acid test is whether or not somebody will actually buy the product.

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这是一个决定性的考验，而我们在这方面不及格，”世卫组织总干事陈冯富珍博士在星期二热带病研究和培训特别规划联合协调委员会会议的开幕式上讲话时说。

This is the acid test, and this is where we are failing," said WHO Director General Dr Margaret Chan, speaking Tuesday at the opening session of the TDR Joint Coordinating Board.

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