buy的过去式是bought,可以读作“博特”。buy英[baɪ]美[baɪ]vt.购买，购得;n.交易，买卖;便宜货;vt.够支付;买通;收买;贿赂;[例句]Hecouldnotaffordtobuyahouse他买不起房子。[其他]第三人称单数：buys现在分词：buying过去式：bought过去分词：bought...