PB

名词 pb:

1. a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey
   同义词：lead, atomic number 82

Pb
NONE（无词性）
The symbol for the element lead 2
元素lead的符号2

来源：
Latin plumbum [lead]
拉丁语 plumbum [铅]