plumb

vertical, perpendicular, upright, erect, plumb

名词 plumb:

1. the metal bob of a plumb line
   同义词：plumb bob, plummet

动词 plumb:

1. measure the depth of something
2. weight with lead
3. examine thoroughly and in great depth
4. adjust with a plumb line so as to make vertical

形容词 plumb:

1. exactly vertical

副词 plumb:

1. completely; used as intensifiers
   同义词：clean, plum
2. conforming to the direction of a plumb line
3. exactly
   同义词：plum

1. Is this wall plumb?
   这墙是垂直的吗？
2. He is just plumb crazy.
   他真是疯了。
3. We begin to plumb the mysteries of the universe.
   我们开始探索宇宙的奥秘。

plumb

n.（名词）
A weight on the end of a line, used to determine water depth.
铅锤：系在一条线末端的重物，用来测定水的深度
A weight on the end of a line, used especially by masons and carpenters to establish a true vertical.
锤铊：系在一条线末端的重物，尤指被石匠和木匠用来建立一条真实的垂线
adv.（副词）
In a vertical or perpendicular line.
垂直地：在一条垂直线或竖直线上
Informal Directly; squarely:
【非正式用语】 直接地；不偏不斜地：
例句：
fell plumb in the middle of the puddle.
恰好落在水坑里

Also plum Informal Utterly; completely:
也作 plum 【非正式用语】 完全地；彻底地：
例句：
plumb worn out.
累极了

adj.（形容词）
Exactly vertical.See Synonyms at vertical
正好垂直的参见 vertical
Also plum Informal Utter; absolute; sheer:
也作 plum 【非正式用语】 完全的；绝对的；彻头彻尾的：
例句：
a plumb fool.
十足的大傻瓜

v.（动词）
plumbed,plumb.ing,plumbs
v.tr.（及物动词）
To determine the depth of with a plumb; sound.
测量深度：用铅锤来测定深度；测量深度
To test the verticality or alignment of with a plumb.
测量垂直度：用锤铊来检查垂直度或是否在一条直线上
To straighten or make perpendicular:
弄直，使垂直：
例句：
plumb up the wall.
使墙垂直

To examine closely or deeply; probe:
仔细地或深入地检验…；探求：
例句：
.Shallow ideas are plumbed and discarded.(Gilbert Highet)
.浅溥的思想被仔细推敲后被摒弃.(吉尔伯特·海特)

To seal with lead.
用铅密封
v.intr.（不及物动词）
To work as a plumber.
做管道工

<习惯用语>out of plumb 或
off plumb
Not vertical.
不垂直的
来源：
Middle English [lead, a plumb]
中古英语 [铅，铅锤]
from Old French plomb
源自 古法语 plomb
from Latin plumbum [lead]
源自 拉丁语 plumbum [铅]

【引伸】
plumb.able
adj.（形容词）