| 释义 |
di.ur.nalH.daI5V:7nEl, $-5V:r-adj [not gradable]specialized happening over a period of a day, or being active or happening during the day rather than at night白天的;白天活动的Desert plants, faced with severe diurnal temperature fluctuations and acute water shortage, only grow very slowly.沙漠植物面对白天严重的温差及水资源的极度缺乏，只能缓慢地生长。Are any owls diurnal (= active during the day), or are they all nocturnal?猫头鹰是白天活动的?还是晚上活动的? ☆ NOCTURNAL
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