twice
A1高频 NGSL-2英 /twaɪs/美 /twaɪs/
释义
adverb
两次
two times; on two occasions
“I don't know him well; I've only met him twice.”
真实视频例句
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“country has the highest child mortality of these five pairs and I put them together so that in each pair of country one has twice the child mortality of the other and”
我把它们配对，使得每对国家中，一国的儿童死亡率是另一国的两倍。
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