outset

/ˈaʊtˌsɛt/

the time at which something is supposed to begin

Chinese meaning: 开始；开端

It is important to clarify the rules at the outset of the project.

在项目开始时明确规则很重要。

From the outset, the team faced numerous challenges but never gave up.

从一开始，团队就面临无数挑战，但从未放弃。