“第一”造句
他们的完整目录售价5美元，
第一次订购时可返还这5美元。
Their full catalogue costs $5, redeemable against a first order.
他写
第一本书得到了400元“巨款”.
For his first book he received the princely sum of $ 400.
他买这房子
第一期付款10万元.
He made a down payment of $ 100, 000 for the house.