restriction
n. 限制规定，限制法规；（受）限制（状态），（受）约束（状态）；制约因素
复数 restrictions
例句
Since the costs of science were rising faster than inflation, some restriction on funding was necessary.
既然科学成本上涨快于通货膨胀，资助上的一些限制是必要的。
《柯林斯英汉双解大词典》
Studies of caloric restriction are showing the way.
热量限制的研究为我们指明了方向。
Clearly, dropping this restriction would allow the other species to recover.
显然，取消这一限制将使其他物种得以恢复。
