molecule
noun
ˈmɒlɪkjuːl
noun
1
the
smallest
unit
into
which
any
substance
can
be
divided
without
losing
its
own
chemical
nature,
usually
consisting
of
two
or
more
atoms
分子
The
molecules
of
oxygen
gas
contain
just
two
atoms.
氧分子中只有两个原子。
molecular
structure
分子结构