Can you explain that point again?
你能再解释一下那一点吗？
He rang off before I could explain.
我还没来得及解释他就挂了。
'Let me explain!' he added helpfully.
“让我来说明一下！”他热心地补充道。
Please don't get cross. Let me explain.
请别发火，让我来解释一下。
How can I explain if you keep butting in?
你一直插嘴，我还怎么解释？