词汇 | rem |
释义 | rem /rєm/ rem n. The quantity of radiation that will have the same biological effect on man as the exposure to one roentgen of ordinary X ray. 【理】雷姆(测量吸收辐射程度之单位)。 REM n. Rapid eye movement; the periodic, repaid, jerky movement of the eyeballs under closed lids during stages of sleep associated with dreaming. 【心理】(作梦时)眼球急速活动。 idoms REM sleep 逆理睡眠。 |
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