今天我们要学的词是choppy. Choppy, 形容词，意思是波浪起伏的，突变的。Efforts to find the missing Malaysian flight MH 370 were focused beneath the choppy surface of the southern Indian Ocean. 针对失踪马航MH370的搜寻努力集中在波涛汹涌的南印度洋海面下。With the Crimean crisis and global tech stock sell-off, stock markets remain choppy in April. 伴随着克里米亚危机和全球科技股抛售潮，四月份的股市继续动荡起伏。好的，今天我们学习的词是choppy, choppy, choppy...