lithium
noun
ˈlɪθiəm
noun
1
a
soft
silver-white
metal
that
is
the
lightest
known
metal,
is
used
in
BATTERIES
,
and
is
often
combined
with
other
metals.
It
is
a
chemical
ELEMENT:
symbol
Li
锂〔一种化学元素，符号为 Li〕