慢速英语:Ready for Takeoff: New Device Makes Personal Flying a Reality

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短语讲解：

1. The company says its personal flight vehicle has performed more than 400 test flights with no major problems.

more than 超过; 不只是; 很
例句：He supervised and trained more than 400 volunteers.
他指导和培训了400多名志愿者。

2. Mayman says these sensors are used to measure speed and movements.

be used to 习惯于，适用于
例句：Petroleum can be used to produce various chemical products.
石油可用于生产多种化学产品。

3. In addition to its jetpacks, the company is also working on a quick-deploying parachute, as well as a personal flying vehicle.

in addition to 除…之外
例句：In addition to French, he has to study Japanese.
除了法语外,他还得学日语。
as well as 也，又
例句：They visited some factories, hospitals as well as the school.
他们参观了这所学校，还参观了工厂和医院。