abbr.acceleration-deceleration unit 加速度-减速度单位，accessory dwelling unit 附属住所单位，accumulation-distribution unit 积累-分发单位，analog-to-digi tal (conversion) unit 模拟-数字（转换）单元...
He was at my door night and day, demanding my attention.他日日夜夜呆在我门口，想引起我的注意。Night and day begin to merge.夜尽昼来。Chantal kept a fire burning night and day.尚塔尔让一堆火日夜不熄地一直燃着。...
鸟用爪抓地面, 有些甚至啄食石块和沙砾.Birds scratch, and some eat stones and grit.猫用爪抓了他的手.The cat raked his hand with its claws.横躺的不动在地板上是看起来像一被用爪抓的某事, 附于其后气囊.Lying motionless on the floor was something that looked like a clawed, tailed ...