马科斯和卡巴约估计，以目前每年16,000钟新动物物种的分类速度，要完成这项工作还需要360年才行。
At the current pace of 16, 000 new animal species cataloged annually, Marques and Carbayo estimate it will take 360 years to complete the job.
我花20分钟学习新单词，花半小时听磁带。
I spend twenty minutes learning new words and half an hour listening to tapes.
在一项研究中，研究人员比较了参与者在几分钟的高强度跑步和40分钟的慢跑后学习新单词的能力。
In one study, researchers compared participants' ability to learn new words after several minutes of intense running and after 40 minutes of gentle running.
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