书籍 English Result - 中级 - 单元 5 - 5B

to write one's name or mark on a document to indicate acceptance, approval, or endorsement of its contents

签名（文件或类似的东西）

to let someone or something do a particular thing

允许某事

to not give permission typically through the use of authority, rules, etc.

禁止某事

to allow something or someone to do something

允许某事

to formally forbid something from being done, particularly by law

禁止