| 词汇 | subtract |
| 词根词缀 | 词根记忆： v. 减(去)To make the contract attractive, the contractor subtracted a tractor from it.为了使合同有吸引力,承包商从中减去了一台拖拉机. v. 减去;扣除(sub下+tract→拉下去→减去)[tract=draw,表示"拉,拖"] |
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