made certain的用法和樣例：
例句
用作動詞 (v.)
- As soon as the purchase is made,and the price ascertain,I will inform you at what they will be invoice.
當我們查明何時有貨，價格多少時，將立即通知貴公司，以什麼價格可以成交。 - A test made to find out whether or not certain facilities which may be desired,such as a subscriber's line or trunk,are available for use.
一種查明希望的某些設施是否可供使用的測試，某些設施可以是用戶線路或幹線等。
