1.estimate to 估計
We estimate the cost to be five thousand dollars.
我們估計費用為5000美元.
It enables an estimate to be made of the reserves , including sphalerite.
它可以用來估計包括閃鋅礦在內的儲量.
2.ask to 要求
Ask to speak to the sister on the ward.
請求和病房里的護士長說話 。
"I didn't ask to be born!" she bellowed.
“我沒有要求你們把我生下來!”她吼道 。