1、We'd like to know your availability and conditions of sale of this line.
我們想知道你們?cè)谶@方面的供貨能力及銷售條件。

2、We 'd like to know the availability and the conditions of sale of this line.
我們想了解一下你們?cè)谶@方面的供貨能力和銷售條件。

3、We'd like to know the availability and the conditions of sale of this line.
我們想了解一下你償在這方面的供貨能力和銷售條件。

conditions of sale翻譯