賣東西遇到外國人，請幫我中翻英：你確定你會說英文嗎？我說電池沒電，為什麼你老是問我是不是電池壞掉？要看電池？為什麼我看不懂你在說什麼？若無法溝通，我沒辦法把東西賣給你，抱歉?

Samples only on
The Q. and A.:-
The portable cell for supplying electricity
eg:-A car battery;
eg:-Transistor batteries etc.
This transistor has four small batteries(=cell);
Testing, Testing; not a bad one.
Here is a free-range at free choice;(not a bad one),but finishing its supplying electricity on your instrument.
Which battery(=cell) do you want ?Mr.
The battery costs you $xxx.
It costs you at the price of $xxx.
Thanks.

Am I understood? The power of battery is too low and it needs to be recharged. Why do you keep asking whether the battery is dead and force me to check it? I really don't know what you mean. I can't sell it to you without knowing what you want.
口氣婉轉些，一時口舌之快没有好結果的，服務業有時要忍些