虽然美国拥有世界上最昂贵的卫生系统，在每个儿童身上的资金投入也比大多数成员国高，但是取得的效果并不理想。
Though it has the world's most expensive health system and spends more per child than most oecd countries, outcomes are poor.
对它们的分离一直以来都在研究，传统的方法有凝固点法、气相色谱法，但是分离效果均不理想。
The separation of them is studied all the while. Traditional methods include freezing point and gas chromatography, But the effect of separation is not so good.
可以肯定的是，学校为我们安排研究生英语写作课程的初衷是好的，但是从这学期的听课效果来看这门课上得并不理想。
To be sure, we have arranged for graduate school courses in English writing the original intention is good, but this semester's classes look at the effect on the course is not satisfactory.
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