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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
mammal
mammalian
mammary
mammary gland
mammogram
mammography
mammon
mammoth
mammy
man
manacle
manacled
manage
manageability
manageable
managed care
management
management buyout
management consultant
manager
managerial
managing director
Managua
Manama
Manasseh
英语词典包含48224条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。
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更新时间:2026/6/18 15:32:47