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单词
proton
释义
proton
pro
ton
/
ˈproʊtɑn
/
noun
[countable]
Etymology
ETYMOLOGY
proton
Origin:
1800-1900
Greek
first thing
, from
protos
; ➔
PROTO-
science
,
physics
a
particle
that exists in the
nucleus
(=
central part
)
of an atom, and that has a positive electrical charge
→
electron
,
neutron
随便看
bedevil
bedevilment
bedfellow
bedlam
bed linen
Bedouin, the
bedpan
bedpost
bedraggled
bedridden
bedrock
bedroll
bedroom
bedside
bedside manner
bedsore
bedspread
bedstead
bedtime
bed-wetter
bed wetting
bee
beech
beef
beefcake
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更新时间:2025/3/24 16:31:39