contract life造句

This book is primarily focused on derivatives market structure, contract life cycle, operations and systems related financial derivatives.
But high-risk people-- such as children, the elderly and people with weakened immune systems because of cancer, AIDS or other conditions-- could contract life-threatening infections.
In contrast to John B . Taylor's model where the nominal wage is constant over the contract life, in Fischer's model the union can choose a different wage for each period over the contract.
It's difficult to find contract life in a sentence. 用contract life造句挺难的