yell at:
对...吼叫
Why did you yell at him?
你为什么对他大吼？
You didn't have to yell at me in front of everyone.
你不应在大家面前对我大吼大叫。

get over:
1.克服
She can't get over her shyness.
她无法克服她的羞怯心理。
2.从(疾病、失望、震惊等)中恢复过来
She seemed to get over the death of her husband in no time.
她好像很快就从失去丈夫的哀伤中恢复过来。
He'll get over the shock.
他会从惊恐中恢复过来的。
3.把...忘怀
He never got over losing his first girlfriend.
失去第一任女友一直不能叫他忘怀。
4.熬过
I'm glad to get my operation over.
熬到了手术结束,我很高兴。

get through:
1.通过,穿过
2.(工作)完成
When you get through with your work, let's go out.
你完成工作后,我们出去吧。
3.(测验)合格
Tom got through.
汤姆考试及格了。
4.接通电话
I rang you several times but couldn't get through.
我给你打了几次电话,可是没打通。