I think I suck at being a father.覺得我這爸爸做得很失敗
sick at很不愉快的； 懊喪的
He was very sick at failing in the examination.
他對于考試不及格覺得很沮喪。
She left her home reluctantly and sick at heart.
她依依不舍地離開了家，心情很沉重。

What are you talking about?你在說什么呢?
talk about討論
We can talk about this matter in private.
我們只能私下談論這個話題。
We have common topics to talk about.
我們有共同的話題可談。

You walk into the room, and she lights up.你一走進房間 她就會很開心
light up（使）容光煥發，（使）面露喜色
Let us light up the world with our brainchild!
讓我們的色彩為世間增添歡笑。
A rare smile lit up his stern features.
他那難得一見的微笑在他死板的臉上平添一些生氣。