con·tem·po·ra·ne·ous
adjective/kənˌtempəˈreɪniəs/
/kənˌtempəˈreɪniəs/
(formal)- contemporaneous (with somebody/something) happening or existing at the same time
同时发生（或存在）的；同步的；共时的 - How do we know that the signature is contemporaneous with the document?
我们怎样才能知道这个签字和文件是同一个时间的呢？ - contemporaneous events/accounts
同一时期的事情／记述
Word Originmid 17th cent.: from Latin, from con- ‘together with’ + temporaneus (from tempus, tempor- ‘time’) + -ous. - How do we know that the signature is contemporaneous with the document?