adv.到目前為止;迄今
Hitherto, this is the advanced method. 到目前為止,這是先進的方法。
Hitherto he had experienced no great success in his attempt. 到目前為止,他的這種嘗試還沒有取得任何重大的成功。
I had hitherto continued to board with Godfrey. 迄今我仍在戈費雷處用膳。