Gas volumeteric chromatography

gas [gæs]

n. 气体;[矿业] 瓦斯;汽油;毒气; vt. 加油;毒（死）; vi. 加油;放出气体;空谈; int. 该死！（令人气愤的人应即被送毒气室处死）;

chromatography

n. 色谱法\\n[化] 色谱法; 层析法

I can't drop the price any further, the owner doesn't allow it.

我不能再进一步砍价了，卖主不肯让步。

I can't tell you how happy this makes me.

我形容不出来我有多高兴。

Next, if it is not a story, get an idea of the organization of the book. Read the back cover and the introduction. Look at the pictures and the short texts below them. Turn to the front of the book and look at the contents. This way you can decide whether

其次，如果不是故事书，你就要对书的篇章结构有所了解。看看目录。这样，你就可以判断这本书是否可能引起你的兴趣。如果是这样，你就可以断定哪几个部分最有用，最有趣。