However, the volunteers were followed for only a couple of years, on average, and the study can't guarantee the long-term safety of the approach.

不过，研究平均只跟踪志愿者几年的时间，不能担保这种方法的长期效果。

youdao

Reducing the spread of these infections will be a critical step towards enhanced and long term safety in health care.

减少这些感染的传播将是实现卫生保健中增强的长期安全的一个至关重要步骤。

youdao

All this requires a new clinical, scientific and regulatory approach, with attention to the short - and long-term safety of adjuvants.

所有这些都需要一个在临床、科研和管理方面的新方法，来关注佐剂的短期和长期安全性问题。

youdao

Treasurys remain a top choice for investors who value short-term safety over long-term growth because they carry negligible risk of default, says Erik Weisman, a portfolio manager at fund company MFS Investment Management.

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Unless preservation of capital is your absolute priority and growth is of no importance, the right approach is to find a balance between short-term safety and the pursuit of long-term results.

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The lack of a bailout also could lead to more safety buying longer term.

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