The Saudi government has the power to grant or deny visas according to its own discretion, and the Saudis indicated last month that participation in this year's Hajj should be restricted.

VOA: standard.2009.07.23

So, grammar can be restricted but still give rise to an infinity of possible sentences.

所以,语法是有些局限,但仍然能产生无限可能的句子

耶鲁公开课 - 心理学导论课程节选

She's done fantastic work, showing how people who help-- whether it's helping five extra acts during the week-- it can be more; doesn't have to be restricted to five-- or people who help five extra acts during one day, it's actually contributing to their wellbeing.

她很好地，证明人们-,不论是在一周内多做五件好事-,可以更多;,不必局限于五件-,或者人们在一天内多做五件好事，都能让他们更幸福。

哈佛公开课 - 幸福课课程节选

Democrats believe,she continued, that the power of the people is to be extended,not restricted.

VOA: special.2010.05.09

The questions to be asked and answered are beyond the jurisdiction of Scots law and the restricted remit of the Scottish government.

VOA: standard.2009.08.24