1. If you are not already represented here, we should be interested in acting as your sole agent.

如果贵方尚未在我方市场有委托代理，我方愿意做贵方的独家代理。

2. It is impossible for us to supply 3,000 sets for the time being.

目前我方无法向贵方提供3000套货物。

3. At present we cannot undertake to entertain your order owing to the uncertain availability of raw materials.

我方无法确定原料供应量是否充足，所以目前不能接受贵方订单。

4. We regret that we are unable to meet your requirement for the time being as orders have been fully booked.

货物已全部订出，目前我方无法满足贵方要求。

5. We are too heavily committed to be able to entertain fresh orders.

我方因订单过多，不能接受新的订单了。