The safety belt's main purpose is _（六个词）if your cacar has a sudden crash with another vehicle or object --or if it rolls over. 填空

The safety belt's main purpose is _（六个词）if your cacar has a sudden crash with another vehicle or object --or if it rolls over. 填空
The safety belt's main purpose is _（六个词）if your ca
car has a sudden crash with another vehicle or object --or if it rolls over. 填空

The safety belt's main purpose is _（六个词）if your cacar has a sudden crash with another vehicle or object --or if it rolls over. 填空
to make sure of your safety 保证你的安全

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to protect you from being injured

to reduce the severity of injury
to protect the safety of driver/passenger