点击下方单词,选择对的这个单词
1. (常指出其不意地)出现,发生If something crops up, it appears or happens, usually unexpectedly.
1. appear suddenly or unexpectedly
e.g. The farm popped into view as we turned the cornerHe suddenly popped up out of nowhere
Synonym: pop uppop
多通过句子记忆单词,而不是单独死记硬背。