hitherto
Formal
例子
The company has hitherto maintained a strong financial position, but recent changes may affect that.
该公司迄今一直保持着强劲的财务状况，但最近的变化可能会影响这一点。
The defendant has hitherto not been involved in any criminal activity.
被告迄今未参与任何犯罪活动。
