effective

"deliver a captive from the prison"

"one of the fundamentals of linear algebra"

"The efficient of the new study method was improved learning outcomes. "

"The president of the student council used last year's debate as a precedent for this year's election rules. "

"The feeling is difficult to describe, but not unpleasant."

"We approximate the total cost of the school trip to be around $500 per student. "

"The new washing machine is quite serviceable; it's easy to fix minor problems. "

"The factory is producing thousands of cars every month. "

"In math class, we learned that `3x² + 2x - 5` is a simple example of a polynomial. "

"The explanation was long and drawn-out."

"In the equation 3x + 2y = 7, the numbers 3 and 2 are the coefficients. "

"The factory employs a skilled operative who is responsible for assembling the electronic components. "