commercial card的用法和樣例：
例句
- The cost of producing a new television commercial could not be justified.
制作一個(gè)新的電視商業(yè)廣告的成本無(wú)法得到合理的證明。 - He then recalled a television commercial in which Duncan refrains from blinking despite a flurry of activity.
接著(zhù)，他回憶起一個(gè)電視商業(yè)廣告，廣告中，鄧肯面前有劇烈的干擾，但他一直忍耐，紋絲不動(dòng)。
