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Arthur von Wiesenberger, who carries the title Water Master, is one of the few water critics in North America.
arbitrary
In each case, the dividing line between poverty and not-quite poverty is somewhat arbitrary.
distinct
The TV chefs and their shows have distinct personalities that appeal to their particular fans.
distinguish
So long as teachers fail to distinguish between teaching and learning, they will continue to undertake
punctual
They should make sure their children are always punctual for school.
instinct
He prophesied: "The imitation of external reality is a fundamental human instinct which is bound to reassert itself."
stimulate
The drug stimulates your nerve activity.
greenhouse
A: How much do you know about the greenhouse effect?
B: Not so much.
