这种畸形包括头或者脑子变小，先天性弱视还有成长缓慢，严重的学习障碍。
These can include smaller head or brain size, poorly formed eyes, slow growth and severe learning difficulties.
在维吉尼亚·兰利的中情局总部，凯勒的学习进展缓慢有着更深层的原因：巴基斯坦问题导致了中情局内部的不和。
At Langley, Virginia, the CIA headquarters, Keller learned of a further reason for the slow progress: problems with the Pakistanis which in turn had led to divisions within the CIA itself.
他们表现的很具有进攻性，学习缓慢，并在发作时持续抽搐——脆性X综合征的典型迹象。
They were aggressive, slow learners, and kept convulsing in seizures-classic signs of Fragile X syndrome.
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