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重点讲解：
1. participate in 参与；参加；
例句：They expected him to participate in the ceremony.
他们希望他参加典礼。
2. hurry up 赶紧；赶快；
例句：Franklin told Howe to hurry up and take his bath; otherwise, they'd miss their train.
富兰克林告诉豪赶快去洗澡;否则他们会赶不上火车。
3. get out of 逃离；被迫离开；
例句：They told him to get out of there and pronto.
他们通知他离开那里而且要马上离开。
4. tie up 把…绑起来；捆绑；
例句：Masked robbers broke in, tied him up, and made off with $8,000.
几个蒙面大盗破门而入，把他捆起来，抢走了8,000美元。
n. 小牛，幼崽，愚蠢的年轻人，小牛皮，小腿肚
