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INTERMEDIATE LEVEL
Content
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→
→
OXF3000ZH:
发动机
☊
→
机动车
☊
→
☊
→
motor
OXF3000ZH:
车辆
☊
→
机动车
☊
→
☊
→
vehicle
like: 机动车
→
→
发动机 ☊ → 机动车 ☊ → ☊ → 
motor 车辆 ☊ → 机动车 ☊ → ☊ → vehicle