295 We must stress that these payment terms are very important to us.

我们必须强调这些付款条件对我们很重要。

296 Please be aware that this is a crucial issue to us.              

请了解这一点对我们至关重要。

297 I do not know whether you realize it, but this condition is essential to us.

我不知道你是否了解，但是，这个条件对我们是必要的。

298 Our policy is not to grant exclusivity.

我们的方针是不授与专卖权。

299 There should always be exceptions to the rule.         

凡事总有例外。

300 I would not waste my time pursuing that.

如果是我的话，不会将时间浪费在这里。