ring的过去式： rang；
ring：v.包围；环绕；给…戴上金属环(以便将来辨认)；绕…画圆
I was having a quiet read when the phone rang.
我在静静地看书，忽然电话铃响了。
He rang off before I could explain.
我还没来得及解释他就挂了。
At that very moment, the phone rang.
就在那时，电话铃响了。
温馨提示：
