宠物狗们需要安全带吗？
You are required by law to wear seat belts.
法律规定你要系安全带。
As I see it, all motorists should wear seat belts.
依我看，汽车司机都应系上安全带。
The guide required that all passengers must wear seat belts.
导游要求所有旅客必须系安全带。
Only 57% of countries have laws that require all car occupants to wear seat-belts.
只有57%的国家制定了法律，要求所有汽车乘员佩戴安全带。
Only 57% of countries have laws that require all car occupants to wear seat-belts.
只有57%的国家制定了法律，要求所有汽车乘员佩戴安全带。
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