On June 6, 2005, the trial was stopped because of the apparent lack of effectiveness of diphenhydramine.

2005年6月6号终因苯海拉明没有显著疗效而停止了试验。

youdao

The main problem of moral education in primary and middle schools at the present is lack of effectiveness.

我国中小学德育当前存在的主要问题是实效性差，缺乏魅力。

youdao

Many community-type forums complained about the lack of effectiveness of many of the suggested detailed solutions.

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The high rate of failure in scientific research should be sufficient to convince us of the lack of effectiveness in its design.

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Months and years of pain, anxiety, confusion as well as loss of relationships and lack of effectiveness in the classroom or workplace is tolerated until "breaking points" are reached.

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