up-and-down造句怎么写
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Two men can chop down even a thick, sturdy rosewood tree in an hour. Then it requires teams of 15 or 30 or 50 to pull the logs through the muddy up-and-down of the vine-covered woodland.
Using either a circular or jiggling, up-and-down motion, brush this area with your toothbrush.
Feng experienced an up-and-down period as her LPGA ranking has been down from top 5 to 14 early in 2016.
Still, many nervous investors have been ditching the up-and-down stock market and pouring their funds into physical assets like gold or cash equivalents.
This has been a really up-and-down week.
Keep a good distance between your skis, so you have room enough to work with both skis, and move your body up-and-down in a rhythmic motion.
These global crises are not just dips and blips in the up-and-down cycle of human history.
The machine utilizes machinery synchronizing shaft structure, which is simple and easy to repair to balance its up-and-down motion.
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