1.  Finally, in the practical life I seldom used what I have learned to communicated with others in English.

2.  Sometime we also find that we can't use what we remember.

3.  We are able to use what we've learnt willingly while it's much different with what we're forced to learn.

4.  Most of Jobs's inventions are widely used which make a profit for Apple.

5.  As for me, critical thinking is a kind of way of thinking we use when we observe the world at a different and meanwhile objective angle.

6.  iI want to use what I know to do something.

7.  It must have a connection with other fields, just like that who studies physics must use mathematical formula which belongs to maths field and who studies biology must know many chemical knowledge .

8.  Generally speaking, red is used when a person is angry while the green is used when someone is jealous.

9.  Color theory really is something that you can only use when you get into it VERY deep.

10.  But many of us think that friends are only a kind of resource we can use when we need just like knowledge, experience or abilities.