| 释义 |
roller coastern., adj. & v.●n. a switchback at a fair etc. (游乐场的)过山车 ●attrib. adj. (作 roller-coaster) that goes up and down, or changes, suddenly and repeatedly 起伏不定的，急转突变的，忽好忽坏的 ●v. intr. (作 roller-coaster) (also 亦作 roller-coast) go up and down or change in this way 起伏不定，经常急转突变 |