ozone hole
(cooking) A strong basic sauce consisting of a dark brown roux that is slowly reduced while further ingredients are added, traditionally including veal stock.
A relationship, often permanent, formed between a male and female animal; initiated during courtship and maintained after mating.
A region of the stratosphere over Antarctica (and a smaller one over the Arctic) that is depleted of ozone in the local spring.
Not disrupted; free of disruption
科学者たちは南極上空のオゾン欠乏域を監視し、成層圏がどの程度早く回復しているかを調べています。
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