The reactions of fish to AC can be distinguished into four stages: electrifying, electrotaxis, electronarcosis and electrocuting. 鱼对交流电的反应可分成四个阶段: 感电 、 定向 、 麻醉和击昏反应.
"Prices are down 40 per cent since Christmas," he lamented.“圣诞节以来物价降了4成，”他悲叹道。The bank yesterday revealed a 30 per cent nosedive in profits.该银行昨天透露其利润骤降30％。Costs have been cut by 30 to 50 per cent.成本降低了30%到50%。...
谷仓里弥漫着新粪酸甜的气味。The barn was filled with the sour-sweet smell of fresh dung.他能闻到粪臭和清新的干草味。He could smell muck and clean fresh hay.清理猫粪时要带上橡胶手套。Wear rubber gloves when handling cat litter....