outset

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柯林斯词典

outset /ˈaʊtˌsɛt/

1. PHRASE If something happens at the outset of an event, process, or period of time, it happens at the beginning of it. If something happens from the outset it happens from the beginning and continues to happen. 在开始时; 从一开始
Decide at the outset what kind of learning programme you want to follow. 一开始就要定下你的学习计划。