| 词组 | complex |
| 释义 | inferiority complex（自卑情结），maternal complex（母性情结）等表达方式里的 complex 是类名词，所以下面两句里的 an 和 a 不可省去： He was overawed by his friend's learning and had something like an inferiority complex. She soon developed a maternal complex towards her sister's son. |
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