In the case of graphs and equations, it includes making quick judgments about where lines should intercept the axes and about their slope, even when that is not at all obvious.
在图表和等式方面，即使当一切不明显，也能对行应在哪里截距轴心和倾斜度上作出迅速的判断。
2
A long-distance sleeper bus with 44 on board veered off a highway in Yanhe County in Guizhou and crashed down an 80m slope at about 7 am Monday. At least 15 people were confirmed dead.
5日早上7时许，一辆载有44人的长途卧铺客车在贵州沿河县翻下80米山坡，至少15名乘客死亡。
3
This line has a slope of 0.922 grams/sheet. So the mass of 1 sheet is about 0.922 grams.