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| VERB |
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| /kənˈtrækt/ |
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| 1 | I if a substance such as metal contracts, it becomes smaller （金属等）收缩，缩小 |
| The steel contracts as it cools. 钢冷却时会收缩。 |
| | 1a | if a muscle contracts, it becomes tighter （肌肉）紧缩 | |
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| 2 | T medical to become infected with a disease 感染（疾病） |
| She contracted pneumonia and died. 她得肺炎死了。 |
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| 3 | I/T to agree to do something or make someone agree to do something by a formal written agreement (使)签订合同；（使）立约 |
| contract to do sth They had contracted to supply the machinery by June. 他们已经订约在6月之前提供机器。 |
| be contracted to do sth The firm was contracted to build 25 low-cost homes. 该公司签下了一份要建造25幢低成本住房的合同。 |
| PHRASES |
| - | contract an alliance formal
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| to agree formally to form a close relationship with another country or organization |
| 联盟；结盟 |
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| The Labour Party contracted an alliance with the Liberal Democrats. 工党与自民党签订盟约。 |
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| - | contract a marriage
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| to agree formally to get married to someone |
| 订婚 |
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| Her marriage was contracted when she was only five years old. 她刚刚5岁的时候就订婚了。 |
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| PHRASAL VERBS |
| - | ˌcontract ˈin |
| PHRASAL VB BRITISH |
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| | to agree by a written legal agreement to be included in something 订约加入；同意参与 | +to Most employees chose to contract in to the savings scheme. 多数雇员选择参加储蓄计划。 | |
| - | ˌcontract ˈout |
| PHRASAL VB |
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| 1 | I BRITISH to agree by a written legal agreement not to be included in something 订约退出（合同）；同意不参加 | +of Some teachers prefer to contract out of the state pension scheme. 一些教师希望退出州养老金计划。 | |
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| 2 | T to give work to another company using a written legal agreement instead of using your own company to do it 订合同把…承包出去 | The firm contracts out most of the basic building work. 该公司把多数基础建设工程承包出去。 | |
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