As part of a global programme , 89 ozone - depleting substances are under legislative control.此外, 又对89种消耗臭氧层的物质实施法例管制,以配合全球的行动.A class I substance is any chemical with an ozone - depleting potential of 0.2 or greater.I类别...
他们方才一直在森林里狼吞虎咽地大嚼野果.They had been gorging fruit in the forest.大家立刻入席,开始大嚼.The guests took their seats at the table and began by making an uncommonly good meal.它们只是在苔原上大嚼特嚼, 睡上几小时,接着再吃.They just chomp on tundra, nap a few...