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1.trade for 以...交换
例句：What will you trade for the bugle?
你要我用什么东西来换你的喇叭？
2.in practice 实际上，事实上
例句：In practice the rules were as unrealistic as they were archaic.
实际上这些规章既陈旧又不现实。
3.heart disease 心脏病；心脏疾病
例句：There's a high incidence of heart disease there.
那个地方心脏病的发病率很高。
4.show up 出席，现身
例句：She made elaborate preparations for the party, but no one showed up.
她为了聚会费心准备,但是一个人也没来。
