请问1.句构 及 2.意思
[Because we have only a limited number of these items in stock],
[this offer is only valid][while supplies last].
我是这样理解的 但不知对不对
Because we ...是副词子句
this offer is...是主要句
while supplies last. 是名词子句
因为我们仅有限量的货在仓库中,所以当供应能持续时报价都为有效.
3Q!