Can you explain that point again?

　　你能再解釋一下那一點嗎？

　　He rang off before I could explain.

　　我還沒來得及解釋他就掛了。

　　'Let me explain!' he added helpfully.

　　“讓我來說明一下！”他熱心地補充道。

　　Please don't get cross. Let me explain.

　　請別發火，讓我來解釋一下。

　　How can I explain if you keep butting in?

　　你一直插嘴，我還怎么解釋？