noun🔗Share过山车, 惊险列车。 An amusement ride consisting of a buggy on a track that rises, falls, twists and turns."During our family trip to the amusement park, my sister was excited to ride the rollercoaster. "我们全家去游乐园玩的时候，我妹妹特别兴奋，想去坐过山车。entertainmentvehiclemachineChat with AIVocabulary GamePractice Reading
noun🔗Share起伏不定，大起大落。 (by extension) Any situation in which there are ups and downs, or violent changes."Our relationship was quite a rollercoaster. Finally, I had enough of it and left her."我们的关系就像坐过山车一样，起伏不定。最后我受够了，就离开了她。situationentertainmentemotionChat with AIVocabulary GamePractice Reading
