本期内容：
Shares in electric car maker Tesla have risen after founder Elon Musk said its new Model 3 car would be ready by Friday, two weeks ahead of schedule. The five-seater car - its lowest-cost vehicle to date - had passed all its regulatory tests. Production should reach 20,000 cars a month by December. The Model 3 is Tesla's attempt to break into the mass market for car drivers.

Ahead of schedule: 提前
Low-cost: 低成本的
Regulatory test: 监管测试
Mass market: 大众市场

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