1570s, "one who sails along coasts," agent noun from coast (v.) in its original sense "to go around the sides or border" of something. Applied to vessels for such sailing from 1680s. Tabletop drink stand (c. 1887), originally "round tray for a decanter," so called from a resemblance to a sled, or because it "coasted" around the perimeter of the table to each guest in turn after dinner.
雙語例句
1. I've been on an emotional roller-coaster since I've been here.
自從我到了這里，情緒就起伏不定。
來自柯林斯例句
2. The last few weeks have been a real roller coaster.
過去的幾個星期，形勢真是變幻莫測。
來自《權威詞典》
3. Over the last few years Japan's socialists have seen their electoral popularity take a roller-coaster ride.
在過去的幾年里，日本社會黨在選民中的支持率忽高忽低。
來自柯林斯例句
4. It's great to go on the roller coaster five times and not be sick.
坐了5次云霄飛車都沒暈，真是太棒了。
來自柯林斯例句
5. She turned green when she came off the roller coaster.