up and down / high grade and low grade / the upper and lower houses of the Diet or parliament / ascending and descending, climbing up and climbing down

interval / during

while; during

interval / space / time / room / gap / pause

ascending and descending, ascent and descent

to ascend and descend, to go up and go down

rise and fall, fluctuation (as a level of something, such as a price)

to rise and fall, to fluctuate (as a level of something, such as a price)

raising and lowering of something / loading and unloading (as of the cargo in a ship) / weaving on a loom (from the way the warp is raised and lowered)

bringing something back up and passing something → vomiting and having diarrhea