ahead of time的音标：ahead of time的英式发音音标为：[ə'hed ɔv taim]ahead of time的美式发音音标为：[ə'hɛd ʌv taɪm]...

提前...

Find out ahead of time what regulations apply to your situation.提前搞清楚什么规章适用于你的情况。This dish may be prepared a day ahead of time and refrigerated.这道菜可以提前一天准备好并冷藏起来。I think he made a tactical blunder by announcing it so far...