simultaneous
/ˌsɪməlˈteɪnɪəs/adjective
- occurring, operating, or done at the same time同时出现的; 同时操作的; 同时进行的; 同步的：
a simultaneous withdrawal of troops
同时撤军
simultaneous translation.
同声翻译。
派生词
simultaneity
/ˌsɪməltəˈniːətɪ/ nounsimultaneously
adverbsimultaneousness
noun词源
mid 17th cent.: based on Latin simul 'at the same time'， probably influenced by late Latin momentaneus.