Sentence examples for both essential and expensive from inspiring English sources

Proving a drug's efficacy through clinical trials is both essential and expensive.

Any time some service is both essential and expensive -- like phone service -- you can bet that somebody will invent less expensive alternatives.

Forensic back-up is both essential and expensive.

In addition, using acid for the pretreatment, a further neutralization is essential and expensive equipment should be applied to handle the corrosive behavior of the material.

Lawsuits are both annoying and expensive.

Text messages are both annoying and expensive.

Moreover, BMD testing is both inconvenient and expensive.

The maximum degree of watertightness obtainable between the gate and its seating is essential if continuing and expensive operational commitments for pumping out leakage water are to be avoided.

This is both time-consuming and expensive.

However, filipin staining is both time-consuming and expensive.

Both are essential and measurable goals.