sink so low【沉得如此深，意思是把事實(shí)掩蓋的如此深】
It's pathetic to see her best friend sink so low.
看到自己最好的朋友墮落到這種地步，她感到非常悲哀。
I can't believe you would sink so low
真不敢相信你想掩蓋事實(shí)

black marks: 記過符號(hào)(污點(diǎn),損壞名譽(yù)的東西)
I hope these black marks will clean off.
我希望這些黑斑點(diǎn)能除掉。
The public scandal was a black mark against him.
那條盡人皆知的丑聞成了他的一個(gè)污點(diǎn)。

get rid of: 擺脫
Let's get rid of this moldy old furniture.
咱們把這件老掉牙的舊家具扔掉吧。
We have an extractor fan in the kitchen to get rid of the smell of cooking.
我們的廚房里有臺(tái)排氣扇，用來消除油煙。