plumb bob
n. 铅锤
例句与用法:
Is this wall plumb?
这墙是垂直的吗?
He is just plumb crazy.
他真是疯了。
We begin to plumb the mysteries of the universe.
我们开始探索宇宙的奥秘。
词形变化:
形容词: plumbable |
动词过去式: plumbed |
动词过去分词: plumbed |
动词现在分词: plumbing |
动词第三人称单数: plumbs |
ph.
铅锤; 垂球
plumb bobplumb bobn.1.■铅锤
plumb bob1.■=plummet
plumb bobnoun- a bob of lead or other heavy material forming the weight of a plumb line
铅锤,垂球
plumb bob
名词 plumb bob:
the metal bob of a plumb line
同义词:plumb, plummet