（1）You may think that inventions are far away from your

.In fact，almost every one can invent.
（2）She decided that a machine could do the job

and with

mistakes.
（3）You can often

with a solution to a problem by looking at it from a different angle （角度） and thinking about it in a new way.
（4）Most inventions are not

.They do not come out of nowhere，but of things or ideas that already exist （存在的）.