另外这个胎儿的发育阶段暗示了他处在3分之2成熟阶段.
The fetus’s level of development indicates that it was at most two-thirds mature.
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.
无情淘汰不合适的后代也可能发生于胎儿开始发育阶段。
The ruthless winnowing of inappropriate offspring can, it seems, also take place well after a fetus has started developing.
无情淘汰不合适的后代也可能发生于胎儿开始发育阶段。
The ruthless winnowing of inappropriate offspring can, it seems, also take place well after a fetus has started developing.
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