1- Users don't satisfy with how internet company used their data, that is cause for worry from Internet gigantic firms.
翻译：
a)Users are dissatisfied with with how Internet companies use the data , that is cause for worry.
b)Internet users grow increasingly discontent with the way their data are treated by internet company, which is cause for concern.
2-情景
a） The cause of the vehicle dropping into ocean is due to the fight between careless driver and insulted passenger.
b) Those sufficient data could justify the cause of the problems.
