试题题干
Translate the following sentence into Chinese.
Once the auction ends, the highest bidder is obliged to pay for the item, usually with a money order or cashier’s check, before the item is delivered.
参考答案
试题解析
考点：auction拍卖；bidder竞标者； be obliged to必须。
句子结构：主句为the highest bidder is obliged to pay for the item。