should you encounter any problem,please give us an opportunity to address it before

should you encounter any problem,please give us an opportunity to address it before

题目
should you encounter any problem,please give us an opportunity to address it before
should you encounter any problem,please give us an opportunity to address it before returning this product.
should you encounter any problem这是什么用法?
答案
这是一个关于should用法的句型,should可译为“假使万一”.
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