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- The kanga jaw uses a linear motor which adds an up and down motion to its rotating jaws. 下颚的坎加采用直线电机增加了一个向上和向下运动的旋转颌骨。
- In a later Boulton and Watt engine, dating from 1788, the up and down motion of the beam was converted into a rotary motion. 1788年，瓦特和波尔顿将上下移动的吊杆改装成旋转式的。
- The old man stared the uninvited guest up and down. 老人把不速之客上下打量了一番。
- He was walking up and down the station platform. 他在火车站的月台上走来走去。
- They were jigging up and down to the music. 他们随着音乐的节拍轻快地上下跳着。
- He leapt up and down in sheer outrage. 他气得暴跳如雷。
- He got up, and began to pace up and down the room. 他起身并开始在房间里踱来踱去。
- We have looked for it up and down. 我们到处都找过了。
- She paraded up and down in her new hat. 她戴著新帽子在人前走来走去。
- The boy stared up and down at his reviler. 男孩子上下打量这个谩骂他的人。
- A little bird was bobbing its head up and down. 一只小鸟把头上下快速摆动著。
- He pumped my hand (up and down) vigorously. 他握住我的手用力地(上下)摇晃。
- We bumped up and down along the gravel path. 我们沿砾石小路颠簸而行。
- We've spent all day humping furniture up and down stairs. 我们花了一整天的时间楼上楼下地搬运家具。
- A butterfly is flying up and down among the flowers. 有一只蝴蝶正在花丛里忽上忽下地飞着。
- The teacher was walking up and down in the classroom. 老师在教室里走来走去。
- Johnson looked her up and down and decided to ask her out. 约翰逊上上下下打量了她一番，决定邀请她出去。
- The price of petrol is going up and down like a Yo-Yo. 汽油的价格像悠悠一样忽上忽下。
- Young men paraded up and down the street in bright T-shirts. 小伙子们穿著鲜艳的T恤在街上招摇地走来走去。
- He paced up and down (the platform), waiting for the train. 他(在月台上)踱来踱去等候火车。
