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In the late 1850s the speed of technological change quickened.19世纪50年代末期，技术变革的速度加快了。He quickened his step.他加快了步伐。Ainslie's pulse quickened in alarm.由于惊恐，安斯利的脉搏加快了。...
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v.（使）变快，增速，加快( quicken的过去式和过去分词 )，苏醒，使有生机...
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Ainslie's pulse quickened in alarm...由于惊恐，安斯利的脉搏加快了。He quickened his steps.他加快了脚步。After this, the pace of events quickened measurably.从此以后，事情进展的速度明显加快了。Ainslie's pulse quickened in alarm.由于惊恐，安斯利的脉搏加快了。In the l...