- previously
- 在: exist; be living
- 以前: before; formerly; prior to; ...
- 人类存在以前的: prehuman
- 在以后: following:after in time as a sequel to
- 以前: before; formerly; prior to; previously 以前各版 all the preceding editions; 很久以前 a long time ago; 以前我没来过这里 。i haven't been here before. 这事发生在他到达以前。 it happened prior to his arrival
下载手机词典可随时随地查词查翻译