changefulness怎么读，changefulness什么意思，changefulness短语和例句

1.Well I think that we should always call matter 'time matter' or matter of time so that we never for a moment forget its essential temporality and essential changefulness.

我们应该把物质称为，时间物质，就不会忘掉其，多变性。

2.Well I think that we should always call matter 'time matter' or matter of time so that we never for a moment forget its essential temporality and essential changefulness.

我们应该把物质称为，时间物质，就不会忘掉其，多变性。

3.Changefulness and the complexity of network environment, as well as the frailty of information system, have decided the objective existence of network safe threat.

网络环境的复杂性、多变性，以及信息系统的脆弱性，决定了网络安全威胁的客观存在。