quickened
v.
（使）变快，增速，加快( quicken的过去式和过去分词 );
苏醒，使有生机;
例句:
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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。
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He quickened his step.
他加快了步伐。
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Ainslie's pulse quickened in alarm.
由于惊恐，安斯利的脉搏加快了。
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By spring, the conventional wisdom had quickened.
来自NEWYORKER
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Two policemen quickened their stride and approached us.
来自E. Waugh
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In recent months, the slow-moving debate quickened.
来自WSJ