该报告的作者推测，男孩在胎儿发育阶段可能对此类化学袭击反应更为敏感，这就可以解释为什么男孩比女孩更有可能出现行为问题。
The foetal development of boys may also be more sensitive to this kind of chemical assault, the authors speculate, which could explain why boys are more likely to have behavioural problems than girls.
科学家推测，对此胎儿的心脏也作出回应，调整到相同节奏，收到良好的生理和心理效果。
The fetuses' hearts responded, the scientists hypothesized, settling into the same rhythm, with effects both physiological and poetic.
对此，一些人推测它可以提高人的免疫力。
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