I went through some pretty dark times.我经历过一段很黑暗的时期

go through:经历，遭受

The child is going through a difficult phase.

那孩子正经历困难的阶段。

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

dedicate to:把(时间、力量等)用在 ...

She's very dedicated to her work.

她对自己的工作专心致志。

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

我要花多少时间准备考试?

He was waiting for me here,threatening to expose me to your family.他在这里等我，威胁说要把我的丑事告诉你家人

wait for:等候； 等待

They waited for the ferry to return.

他们等候渡船返回。

It irks us to wait for people who are late.

等候迟到的人使我们厌烦。

expose to:曝露

The color fades when exposed to light.

这颜色曝光後会褪色。