become语音：[bɪ'kʌm]
过去式 became 读音：[bɪˈkeim]
become
vi.变为，成为变得变成
become 变化形式
第三人称单数： become
过去式： became
过去分词： become
现在分词： becoming
例句：
That has become a pattern .这已成为一种模式。
But pcs have become commodities .但是个人电脑已成为商品。
Please become a good leader .请成为一位好的领导人。
The game would become lively .冲突将变得很激烈。
How dependent have we become ?
我们变得有多依赖
