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1·Another sister struggled with a severe mental handicap.

他的另一个妹妹患有严重脑障。

2·Another sister struggled with a severe mental handicap.

他的另一个妹妹患有严重的心理障碍。

3·The fully cognition of the effect which P. E. exerts on college students' hygiene will help them build a strong body, cure the mental handicap and adjust the mental status.

充分认识和了解体育锻炼对当今大学生心理保健所起的作用，可以帮助并引导大学生增强体质，消除心理障碍，调节精神状态。

4·The reverberating sound and the backward impulse that arise from the gun - shooting make shooters nervous, the more serious of which will regenerate the different levels of the mental - handicap.

手枪射击时所产生的声响和后座力，都会使射手产生心情紧张，严重的还会产生不同程度的心理障碍。