1. They need to resume contract negotiations today.
他们今天必须重新进行合约谈判。
还能这样说：
They should renew the contract talks today.
They should start the negotiation afresh today.
应用解析：
void contract 无效契约

2. They will begin another round of negotiations tomorrow.
他们明天将开始另一轮的谈判。
还能这样说：
Another negotiation will start tomorrow.
They will have a new round of talks tomorrow.
应用解析：
round off 除去……的角，使……变圆；使……完美；完结（文章）

3. Listening is very important in international business negotiations.
倾听是国际商务谈判的一项重要活动。
还能这样说：
Listening plays an important part in the international business negotiations.
Listening takes an important event during the international business negotiations.
谚语：
When the weasel and the cat make a marriage, it is a very ill presage.
黄鼠狼和猫结亲，不是好事情。

4. Both sides refused to come to the negotiating table.
双方都拒绝谈判。
还能这样说：
Both sides disagreed to go on the negotiations.
Neither side would like to come to the negotiating table.
应用解析：
on the table 人尽皆知的，已成为公开讨论的