1.Their company has contracted a sign the amphibious bridge across the country.
他们公司已签约承建一座横跨大江的两用大桥。
重点词语：contract n.合同，契约 v.订约；承包
商务用语：draw up a contract 草拟合同
negotiate a contract 缔结契约
make a contract with 与…签订合同

2.She seldom contributes to the discussion.
她在讨论中很少发言。
acquisition cost 取得成本，购置成本，招揽成本

3.Please pay attention—an automatic 30—day credit on all orders.
请注意——所有的定单都有30天的缴款延缓期。
重点词语：credit n.①赊购，赊购制度 ②信任，信用
商务用语：credit card 信用卡
credit sales 赊购
credit note 信用票据；货项凭单
letter of credit 信用证

4.Creditors have better memories than debtors.
[谚]债主的记性比债户强。
重点词语：creditor n.债权人，贷方
商务用语：unsecured creditor 无担保债权人
creditor nation 债权国
secure a creditor 为信贷作保