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？