Piga
abbr. polymeric immunoglobulin A 多聚免疫球蛋白A
🗣️ 情景例句
Why don't we take a walk down to the river?
我们何不一路散步到河边去呢？
Best wishes to you both.
祝你们俩无比幸福！
In less than a minute, it roared past them only a few feet away.
不到1分钟的工夫，它从离他们只有几英尺远的地方呼啸着驶了过去。