Aid, done well, is an indispensable tool in this effort.
The Unravelling is an indispensable tool for understanding the background to this failure.
The professional social network LinkedIn is an indispensable tool, with its database of start-up employees.
To federal regulators, law enforcement authorities and insurance companies, the data is an indispensable tool to investigate crashes.
Today a dog-eared, water-stained "Stebbins," as it came to be called, is an indispensable tool in a herpetologist's field pack, Mr. Mendelson said.
Such a reconstruction is valuable, because mimicry is an indispensable tool in the study of the evolution of animal communication, and usually starts from conspicuously elaborated signals, which postulate a signal receiver interested in them.
The companies' policy against debt forgiveness, or principal reduction, has blocked widespread use of what many have come to believe is an indispensable tool for fixing the housing problem.
For this purpose, visualization is an indispensable tool.
Microwave oven is an indispensable tool in every household.
These lawyers say the class action is an indispensable tool for disciplining corporations run amok.
My phone is an indispensable tool, and I want the best tool.
