买卖双方的英文：
both vendor and purchaser ;round turn

参考例句：

Two (2) copies of time sheets signed by the Site Representatives of two Parties
买卖双方现场代表联合签署的时间表二份

Once the contract is signed, the seller and buyer should enforce it according to the provisions.
合同签订以后，买卖双方应该按照合同的规定履行合同。

The price clause is an important part of a contract, where the buyer and seller argue most.
价格条款是合同中的重要条款，这是买卖双方争论较多的地方。

Guarantor waives any right to a jury trial in any action hereunder or arising out of Buyers transactions with Seller.
担保人放弃在因本担保书或买卖双方交易而产生的任何诉讼中由陪审团审理的所有权利。

Each party shall bear its own legal costs. Subject to Clause 11 hereof, all stamp duty shall be borne by the Purchaser.
买卖双方各自负责其律师费。除第11项所规定外，买方须支付所有厘印费。

vendor是什么意思：
n. 摊贩；卖主；供应商；自动售货机

vendor's account
卖主帐户

PROM vendor evaluation card system
卖主评价卡片系统

If the problem persists, contact the program vendor.
若该故障一直存在，请与供应商联系。

purchaser是什么意思：
n. 买方，购买者

purchase freedom with Blood
以血的代价赢得自由

This orchard became ours by purchase.
这个果树园被我们买下了。

such as stores requisition, purchase requisition,
像库存调拨单，购物申请单，

round是什么意思：
adj. 圆形的；整数的
adv. 周围；在周围；调转方向；绕弯；到某地
prep. 环绕；围绕
n. 阶段；轮次；圆形物体；【音】轮唱曲
v. 绕行；绕过；（使）成圆形；变圆

There is a round circuit.
这有一个环型赛车场。

The water wheel goes round and round.
水车转个不停。

When you squeeze the trigger, a round or rounds of ammunition are fired.
当你紧按板机，一发或几发子弹就射出了。