essential

"We're working with energy storage partners to bring this breakthrough to market-led applications -- where both high energy and fast power delivery are essential."

This exchange is essential for learning, memory formation and the processing of information.

At a plaza at the complex, people manning a local relief effort collected donations and distributed essentials such as clothing, bedding, diapers and food to residents displaced by the fire.

She said festive items were required this year, such as Christmas cake, cranberry sauce, gravy, and chocolate coins for stockings, as well as essentials such as toilet roll, toothbrushes and deodorant.

It has already added them to its "essential" medicines list that countries are advised to provide.