A point at which a curve crosses itself and at which the two tangents to the curve coincide.
尖点，会切点曲线上的一个点，曲线在该点与其本身相交，曲线的两条切线在该点重合
The Relationship between the Differentiability on a Point of a Function and the Derivatives of the Function around the Point;
函数在一点的可导性与在该点附近的导数的关系
You should get out at the terminus.
你应该在终点站下车。
It should be at 8, but the train seems delayed.
应该是在8点，但是火车好像晚点了。
Terrorists in fucking training.Slow the fuck down!
像该死的恐怖分子在训练,该死的,慢点开！
You should take the A train and get off at Broadway station.
您应该乘a线车，在百老汇站点下车。
Secondly, we should unite with them on the issue of democracy.
其次，应该在民主一点上团结起来；
Updating Spooler(s) running on this node
更新运行在该节点的后台打印程序
I think you should take some odd jobs during the summer holidays.
我想你在暑假里就应该干点临时工作。
Please see to it that the children go to bed by 9 o'clock.
请务必使该子们在9点之前上床睡觉.
You should have gotten off the bus at the last stop.
你该在这路车的终点站下车。
Everybody must do a daily stint in the kitchen.
每个人都应该每天在厨房里干点活儿.
It's 8:30. Time to English class.
现在八点半了。该上英语课了。
You are supposed to meet me at 2 o'clock.
你应该在两点钟来见我的。
He is supposed to be back at the base by seven.
他应该在7点以前回到基地.
"Well, she ought to know better than to want to go out alone."
“她该懂点事了，不能一个人在外面跑。
Instead, we should focus on long-term trends.
因此，我们应该将焦点集中在长期趋势。
Come along, you should finish the discussion in half an hour.
快点，你们该在半小时之内结束讨论。