不知道从何开始 meaning in Chinese

i don't know where to start

Teams that want to give xp a try often don t know where to start
希望尝试xp的团队经常不知道从何开始。
Not sure where to start
不知道从何开始？
It begins when we need to do something but we do not know what
决策行为的起始点，是当我们需要做某些事情，但是却不知道从何开始。
But when he complied , i scarcely knew how to begin ; such horror had i of the possible answers
我有些问题要问他，但待他答应之后，我却不知道从何开始了。