| 释义 |
Some volcanoes have eruptive cycles followed by stretches of dormancy.有些火山在喷发周期之后有持续的静止时期。Except for four months of winter dormancy, the butterflies are perpetually on the move.除了冬季休眠四个月，蝴蝶总是在不停活动。The volcano has been in a state of dormancy for many years.这座火山多年来一直处于休眠状态。Many plants alternate an active period with a period of dormancy.许多植物的活动期和休眠期是互相交替的。During dormancy the plants must be kept very dry.休眠期间，植株必须保持干燥。 |