每日背誦第五期28
Experts contend, however, that the transformation of a deadly virus or bacterium into an effective weapon is anything but straightforward: A conventional bomb would likely destroy the germ as it exploded. In contrast, dissemination via alternative methods, such as surface mail, has recently proved quite effective.
然而，專家認為，要將一種致命的細菌或病毒轉化成有效的武器并不是一件容易的事：一顆常規(guī)炸彈就有可能在爆炸時摧毀病菌。相對來說，通過其它方式傳播，如普通郵件，近來被證實相當有效。
(短文節(jié)選,本篇始于：化學武器什么樣)
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