... 这个月到目前为止每天都在下雨 it has rained every day so far this month 到那时为止 as yet; by then; theretofore 到目前为此 so far ...
权威例句
1.
Coincidentally, BOJ was shocking the world with a theretofore unheard of zero interest rate policy.
FORBES: On-Line Brokers and the (Unfulfilled) Promise of Tokyo's "Big Bang"
2.
In so doing, these elder statesmen helped transform an idea that had theretofore been written off as the Holy Grail of, with very few exceptions, the Looney Left.
CENTERFORSECURITYPOLICY: Stopping START
3.
The new method that Fust now controlled allowed him to mass produce at low cost products that theretofore had been very expensive and time-consuming to produce by hand.