建议中有些有道理但却很难实施(加紧ets配额)，还有的纯属噱头(在机动车道上对车速进行更严格限制)。
These range from the sensible, but difficult (tightening ETS allocations) to gimmicks (stricter enforcement of speed limits on motorways).
但是，验证器的确需要向这个语法信息添加一些额外的元数据并对其结构实施一些限制。
However, the validator does require some additional metadata to be added to the syntax information and imposes some restrictions in its structure.
他国对国际贸易实施限制的确会伤害到我们，但同时也会伤到他们自己。
Other countries that impose restrictions on international trade do hurt us. But they also hurt themselves.
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