空气,无论是气态的或是液态的,都是一种流体.Air whether in the gaseous or liquid state is a fluid.流体包括气体和液体.Fluid includes both gasses and liquids.水既是流体又是液体.Water is both a fluid and a liquid....
If the note of D is sounded on a harp, all the corresponding D strings of other octaves will likewise resonate.如果用竖琴演奏D音符，其他八度音阶所有相应的D弦都将发出共鸣。The other circuit is designed to resonate close to the desired frequency.把另一线圈...
出租汽车的计程表在滴答地跳动.The taximeter was ticking away.出租汽车的计程表在滴答滴答地走着.The taxi's metre was ticking away.我们等候时,计程车里的计程表一直在滴答地响着.While we waited the taxi's meter kept ticking away....
绵羊奶和山羊奶的生产过程差不多。Sheep's milk is produced in much the same way as goat's milk.绵羊边吃边走，穿行在厚厚的一层黄色落叶中间。Sheep were munching their way through a yellow carpet of leaves.绵羊特别适合驯养。Sheep are particularly well suited for...