遊樂園裡的那座設施
這是畫面本身：真的存在的軌道和車廂。
noun · B1
A ride at a fair or an amusement park: a train of small open carriages that runs along a narrow track with very steep drops and sharp curves, so that riders feel sudden speed and falling.
雲霄飛車
核心畫面
You can think of one picture holding this word together: a small train that is hauled up a high slope, let go, and then thrown down, up and around a narrow track. Nobody is steering it, the drops come without warning, and the whole thing is over quickly. Everything this word does grows out of that ride.
這個字可以想成一個畫面：一列小車被拉上高坡，然後放手，一路被甩下去、甩上來、甩過急彎。沒有人在開它，落差說來就來，而…更多收起
這個字可以想成一個畫面：一列小車被拉上高坡，然後放手，一路被甩下去、甩上來、甩過急彎。沒有人在開它，落差說來就來，而且很快就結束。無論講的是遊樂園的設施，還是一段日子，都可以從這個「被載著忽上忽下」的畫面看出來。Two branches
像坐雲霄飛車的一段日子
把同一個畫面套到人生的一段時間上：起伏大、來得快、自己使不上力。
noun · B2
A period of time or an experience that keeps changing fast between good and bad, or between strong feelings, so that nothing stays steady for long.
大起大落