His grades were not so good as before.

他的成绩不如以前好了。

youdao

It's not so good as before. Both the air and the water are badly polluted.

不像以前那么好了。空气和水都被严重污染了。

youdao

This bike is not so good as that one.

这辆自行车不及那辆好。

《新英汉大辞典》

"This is not any place in which one so good as Miss Johnsy shall lie sick,"

VOA: special.2009.08.01

It amounts to 2 to 3% of calories for the average consumer, and as I mentioned, Trans fats are not so good.

平均每位消费者,有2-3%的热量来自反式脂肪,正如我所说,反式脂肪不那么好

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Another side effect if you take too much lithium is death, so that's no good to have in sodas either, and it might not have been as big a deal back in the 1920's, but you can imagine with supersizing today, this might be a bigger problem.

另一个副作用是因为摄入锂过量而死，这更说明在汽水里放这种东西是不好的，这在二十世纪二十年代可能没什么大问题，但你可以想象在如今这个什么都超标的时代，这也许会出更大的问题。

麻省理工公开课 - 化学原理课程节选

But who are the vendors to say that the technology is not being used for good as well as for what you would consider not so good?

FORBES: State Dept Official Calls Out Surveillance Gear Marketer On Human Rights

But, like so many things offered by our Republican friends in Congress, the notion of cross-state insurance sales may not be quite so good as it first appears.

FORBES: Would The Sale of Health Insurance Across State Lines Really Benefit Americans?

Interest rates on the fixed-rated bonds dropped to 5.9% just in the past few weeks, so it's not as good a time to refinance.

FORBES: How have your funds been doing lately?