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He uses a lift to go up and down. 他乘电梯上楼下楼。
shiver go up and down 打冷颤
To go up and down in classis not allowed in any school. 在课堂上走来走去没有哪个学校允许。
Go up and down stairs on the right side, walk gently and modestly. 上下楼梯靠右行,你谦我让脚步轻。
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。
The headpiece can rotate cylindricality and go up and down. 主传动全部采用齿轮传动，配置有微量进给系统；
With an elevator in the skyscraper, we can easily go up and down. 摩天楼里有电梯, 上下很方便。
The people on the bus go up and down all thru the town. 车子上的人们（颠簸）的上上下下，一直到城里。
I never let those people go up and down in my gardan. 我可不能让那些人都在我的花坛里到处乱踩。
The broom went up and down the steps. 扫把在阶梯爬上爬下，
The bus went up and down and I was gonna throw up. 汽车上下颠簸,我就快吐了。
Many ships are going up and down the river. 很多轮船在那条河里来来回回地游弋着。
What goes up and down stairs without moving? 什么东西上下楼梯但不移动?
The boat went up and down the waves. 小船随着海浪上下颠簸。
It goes up and down the stairs without moving. 一样东西上下楼梯却不移动。
The children went up and down the stairs. 孩子们在楼梯上走上走下。
I don't mind living in a top flat. Going up and down stairs will be good exercise for me. 住顶楼，我不在乎。上上下下爬楼梯对我会是很好的锻炼。
Easily get breathless from going up and down the stairs. 上下楼梯容易气喘。
Prices have gone up and down like a seesaw this year. 今年的价格像跷跷板一样时涨时跌。
The schilling went up and down, but its longer course was down. 奥地利先令时涨时落，但就其长期趋势而言则是下跌的。