1·Then we introduce the conceptions of derivation-ideals, solvable derivation-ideals and simple derivation-algebras.
然后引入导子理想、可解导子理想以及导子单代数的概念。
2·As a matter of fact, the problem is not always solvable.
实际上，这一问题并不总是可解的。
1·Though it is hard work, it is still a solvable problem.
虽然这是一项艰巨的工作，但仍然是一个可以解决的问题。
2·These are solvable problems.
这些是可以解决的问题。
3·That's a long list of problems, but I think they're all solvable.
这是一个长长的问题列表，但是我相信这都是可以解决的。
4·The problem in front of you is solvable if you reach outside your discipline over the fence into other disciplines.
你面前的问题是可以解决的，如果你超越你的学科范围越过其他学科。