In conclusion, I believe that artists' freedom to express their ideas should be proteced to the extent that there are effective measures to ensure such freedom does not pose a threat to social order or to other citizens' well-being.

【翻译】总之，我认为，艺术家们表达自己观点的自由应该受到保护，要做到制定出有效的措施，来确保这种自由不会对社会秩序或其他公民的利益造成威胁。

such 是限定词，修饰freedom，意为“这样的自由”。不是such 后可以接句子，而是动词ensure 可以跟宾语从句。ensure that... = make sure that... “确保”。本句省略了that。

1. Ensure that the frame is securely fixed to the ground with bolts.  

确保用螺栓把框架牢牢地固定在地面上。

来自柯林斯例句

2. Senior politicians connived to ensure that he was not released.  

几位资深政治家串通起来确保他不会获释。

来自柯林斯例句

3. Ensure that whatever you gain now will be for keeps.  

确保你现在所获得的一切永远不会失去。

来自柯林斯例句

4. Steve and I worked frenetically to ensure that everything would go smoothly.  

我和史蒂夫发狂似的忙碌以保证一切顺利进行。

来自柯林斯例句

5. We do a blood count to ensure that all is well.  

我们检查了血球指数，以确保一切正常。

来自柯林斯例句

6. Ensure that new wood has been seasoned.  

确保新木材已经风干。

来自柯林斯例句

7. Ensure that all the waste is properly and safely disposed of.  

一定要适当且安全地处理所有废料。

来自《简明英汉词典》

8. I will ensure that the car arrives by six o'clock.  

我保证汽车六点钟以前到.

来自《简明英汉词典》

9. We must try to ensure that vital food supplies are maintained.  

我们必须确保维持生命所必需的食物之供应。

来自《简明英汉词典》

10. We took steps to ensure that rules should be faithfully carried.  

我们采取了措施,以确保这些规章会不折不扣地得到贯彻。

来自《简明英汉词典》