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1.slow down （使）放慢；（使）减速
例句：There is no cure for the disease, although drugs can slow down its rate of development.
尽管药物可以减缓病情的发展，但是这种病仍然是不治之症。
2.put up 张贴；举起；建造；提高
例句：The cafe owner has put up the required 'no smoking' signs, but thinks his responsibility stops there
咖啡馆老板已经按规定贴上了“禁止吸烟”的标志，但是他认为自己的责任就止于此。
