I went through some pretty dark times.我經歷過一段很黑暗的時期

go through:經歷，遭受

The child is going through a difficult phase.

那孩子正經歷困難的階段。

That's why I've dedicated my life to charity,所以我現在全心全意致力于慈善事業

dedicate to:把(時間、力量等)用在 ...

She's very dedicated to her work.

她對自己的工作專心致志。

How much time should I dedicate to preparing for the exam?

我要花多少時間準備考試?

He was waiting for me here,threatening to expose me to your family.他在這里等我，威脅說要把我的丑事告訴你家人

wait for:等候； 等待

They waited for the ferry to return.

他們等候渡船返回。

It irks us to wait for people who are late.

等候遲到的人使我們厭煩。

expose to:曝露

The color fades when exposed to light.

這顏色曝光後會褪色。