慢速英语:WHO Urges Ban on Blood Test for Tuberculosis

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短语讲解：

1. W.H.O. officials made the call after two studies found that results from a commonly used test are undependable and misleading.

result from产生于…, 由…引起
例句：His failure resulted from not working hard enough.
他的失败是工作不够努力造成的。

2. However, these tests take longer to carry out.

carry out贯彻，执行；完成
例句：They carried out their plan without difficulty.
他们顺利地完成了计划。

3. What these tests do is they measure antibodies in the blood against TB so anytime anyone has been infected with TB at any time in their life, they will develop antibodies.

be infected with感染,沾染上
例句：The man has been infected with cholera.
这人已染上了霍乱。

4. The problem is that one person’s antibodies are not going to be the same as another person’s antibodies.

the same as与…同样的
例句：I live in the same house as he.
我跟他同住一所房子。

5. They are mostly used in countries with weak regulation, and lack of regulation allows these sorts of tests to be on the market and used freely.

lack of缺乏, 缺少
例句：He can not buy it because of his lack of money.
他因缺钱买不起这个。