simultaneous
/ˌsaɪməlˈteɪniəs/
occurring or operating at the same time
中文释义：同时的；同步的
The conference offered simultaneous translation in five languages.
会议提供了五种语言的同声传译。
The two earthquakes occurred almost simultaneously in different regions.
这两次地震几乎同时发生在不同地区。