杜 dù : (surname); fabricate; restrict; to prevent

Big5: , Unicode: 675c (杜),
Links: MT, Cantonese, Ld, Chinese Language

開 放 kāi fàng : lift (restrictions); open; to lift a ban; to make open to the public

束 縛 shù fù : bind; restrict; tie

限 於 xiàn yú : restrict at

限 制 xiàn zhì : (impose) restrictions; to limit; to bound; to restrict

抑 yì : to restrain; to restrict; to keep down; or

Big5: , Unicode: 6291 (抑),
Links: MT, Cantonese, Ld, Chinese Language

約 [约] yuē : appointment; agreement; to arrange; to restrict; approximately

Big5: , Unicode: 7d04 (約),
Links: MT, Cantonese, Ld, Chinese Language

約 束 yuē shù : restrict; limit to

制 約 zhì yuē : to restrict; condition