TASK DEFINITION: In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
PROBLEM: It uses differential and integral calculus as well as linear algebra to study problems of geometry .

SOLUTION: Differential geometry is a mathematical discipline that uses the techniques of differential calculus , integral calculus , linear algebra and multilinear algebra to study problems in geometry .

PROBLEM: A receptor antagonist is a biological repressor molecule .

SOLUTION: A receptor antagonist is a type of receptor ligand or drug that blocks or dampens a biological response by binding to and blocking a receptor rather than activating it like an agonist .

PROBLEM: In America , a soccer mom is a middle-class woman in the suburbs who spends a lot of time taking her school-aged children to sports events and other activities .

SOLUTION:
The phrase soccer mom broadly refers to a North American , middle-class , suburban , white woman who spends a significant amount of her time transporting her school-age children to youth sporting events or other activities , including though not restricted to soccer .