arm

arm¹
noun

each of the two upper limbs of the human body from the shoulder to the hand
手臂
she held the baby in her arms.
她把婴孩抱在怀里。
■each of the forelimbs of an animal
（动物的）前肢
■a flexible limb of an invertebrate animal, e. g. an octopus
（无脊椎动物如章鱼等的）灵活的肢体
■a sleeve of a garment
（衣服的）袖子
■an ability to bowl, pitch, or throw a ball skillfully
（熟练投球、掷球或抛球的）能力
he has a good arm.
他是投球高手。
■used to refer to the holding of a person's arm in support or companionship
手臂（挽住以示支撑或陪伴）
as they walked he offered her his arm.
他们走着的时候，他让她挽住他的手臂。
he arrived with a pretty girl on his arm.
他臂上挽着一个漂亮女孩来了。
■used to refer to something perceived as powerful or protective
[用于表示力量或保护]手臂
they have extended the arm of friendship to developing countries.
他们将友谊之手伸向了发展中国家。
a thing resembling an arm in form or function, in particular
（形状，功能）像手臂的东西，尤指
■a side part of a chair or other seat on which a sitter can rest their arm
（椅子或座位的）扶手
■a narrow strip of water or land projecting from a larger body
狭长的延伸出的陆地；狭长港湾
■a large branch of a tree
大树枝
■(figurative)a long, narrow shape or object
(喻)长而窄的形状（或物体）
a long arm of sunshine.
一片狭长的阳光。
a branch or division of a company or organization
（公司或组织的）部门
the political arm of the separatist group.
分裂主义集团的政治部。
■one of the types of troops of which an army is composed, such as infantry or artillery. arm
兵种（如步兵，炮兵）
(Mathematics)each of the lines enclosing an angle
(数)形成角的边

常用词组
arm in arm

(of two or more people) with arms linked
（两人或多人）臂挽臂地

as long as one’s (或 someone's) arm

(informal)very long
(非正式)很长，十分长
I have a list of vices as long as your arm.
我的恶习一大堆。

at arm's length

away from the body, with one's arm fully extended
以一臂之远，在伸手可及之处
I held the telephone at arm's length.
我把电话放在我伸手可及的地方。

beyond arm's reach

见后面 within arm's reach

cost an arm and a leg

(informal)be extremely expensive
(非正式)十分昂贵的

give one's right arm

(informal)used to convey how much one would like to have or do something
(非正式)付出极大的代价
I'd give my right arm to go with them.
为了和他们一起去，我愿付出极大代价。

in arms

(of a baby) too young to walk
（婴儿）只能抱在怀里，太小不会走路
a babe in arms.
还抱在怀里的小孩。

into the arms of

into the arms of into the possession or control of
被…拥有，受…控制
the violin passed into the arms of a wealthy dilettante.
那把小提琴落到了一个对音乐一知半解的有钱人手里。

keep someone/thing at arm's length

avoid intimacy or close contact with someone or something
避免与（人，物）亲近（或接近）

the long (或 strong) arm of

the far-reaching power, authority, or influence of
深远的威力（权力或影响）
the long arm of the law caught up with him.
他终于难逃法网。

put the arm on

(N. Amer. informal)attempt to force or coerce (someone) to do something
(北美，非正式)强迫，迫使，胁迫
she started putting the arm on them for donations.
她开始强迫他们捐钱。

under one's arm

between one's arm and one's body
在腋下
Meryl tucked the papers under her arm.
梅里尔把文件夹在腋下。

with open arms

with great affection or enthusiasm
友好地，热烈地
schools have welcomed such arrangements with open arms.
学校十分欢迎这样的安排。

within (或 beyond) arm's reach

near (or not near) enough to reach by extending one's arm
伸手可及（或不可及）的

派生
armful
(pl. -fuls)
noun(pl. -fuls)
armless
adjective
语源

Old English arm, earm, of Germanic origin; related to Dutch arm and German Arm

arm²
verb

[with obj.]supply or provide with weapons
（以武器）装备
both sides armed themselves with grenades and machine guns.
双方都用手榴弹和机枪武装自己。
■supply or provide with equipment, tools, or other items in preparation or readiness for something
提供（设备、工具或其他物品而为某事做准备）
she armed them with brushes and mops.
她给他们刷子和拖把。
■activate the fuse of (a bomb, missile, or other explosive device) so that it is ready to explode
使（炸弹、导弹或其他爆炸装置）处于准备引爆的状态

语源

Middle English : from Old French armer (verb), from Latin armare, from arma 'armour, arms'

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