shaky：不稳定的
But the evidence for mr mantega's case is pretty shaky.
但曼特加先生的论据是相当不可靠的。
The shaky finances of some municipalities could put what's left of the industry to another huge test.
一些市政府不稳固的财务状况可能使这个行业剩下的公司面临另一个巨大的考验。

cheat on: 不忠于(妻子或丈夫)
Why do men cheat on their wives?
男人们为什么要欺骗他们的妻子呢？
If you ever cheat on me, at least do it with someone you don't know.
如果你对我不忠，至少要跟个你不认识的人。

for all I care: 【口语】与我无关，关我什么事
Go down in flames with it for all I care!
继续往火坑里跳吧与我无关了!
Wait till it's plumb dark, for all I care.
那就等到天全黑吧，又与我无关。