heretofore
英 [ˌhɪətuˈfɔː(r)]
美 [ˌhɪrtuˈfɔːr]
adv. 在这之前
BNC.38480 / COCA.16177
牛津词典
adv.
- 在这之前
before this time
柯林斯词典
- ADV 此前;迄今
Heretoforemeans 'before this time' or 'up to now'.- They reported that clouds are an important and heretofore uninvestigated contributor to the climate.
他们报告说,云是影响气候的一个重要因素,但迄今为止没有进行过研究。
- They reported that clouds are an important and heretofore uninvestigated contributor to the climate.
英英释义
adv
- used in negative statement to describe a situation that has existed up to this point or up to the present time
- So far he hasn't called
- the sun isn't up yet