1.A decision made by the commander often means the difference between life and death.
2.If you want to take this profession, you should always gain new knowledge.
3.The words our teacher said just now has great impact on us.
4.My deskmate always explains the problem until I totally understand.
5.I've made up my mind to work in a educational institution after I graduate from college.
希望能帮到你,祝更上一层楼O(∩_∩)O