的;
;a mentally retarded child
弱
的孩子
力)发育迟缓的, 弱的障；力迟钝a mentally retarded child
弱的孩子
The heavy rain retarded our progress.
大雨妨碍了我们的进展。
Lucy is very retarded and can't read yet.
露西
力方面发育十分迟缓, 至今还不识字。
his progress was retarded by his limp.
由于腿瘸，他走不快。
Her death was retarded by five years because of good treatment.
由于良好的治疗,她多活了五年。
Her death was retarded by five years because of good treatment.
由于良好的治疗,她多活了五年。
The heavy rain retarded our progress.
大雨妨碍了我们的进展。
The problem of validity when tests are used in minority groups or for the educationally-mentally retarded.
Ⅱ、正确处理少数民族地区及弱儿童测试工作中测验效度的问题。
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