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单词
half-life
释义
half-life n time taken for the radioactivity of a substanceto fall to half its original value 半衰期(某物质的放射性元素由原有量衰减到一半所需的时间).
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p and p
pane
panegyric
panel
panel-beater
panellist
panel truck
pan-fish
pang
panhandle
panic
panicky
panic-stricken
panjandrum
pannier
pannikin
panoplied
panoply
panorama
panoramic
pan-pipes
pansy
pant
pantaloon
pantechnicon
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更新时间:2026/1/11 21:44:40