Piga
abbr. polymeric immunoglobulin A 多聚免疫球蛋白A
🗣️ 情景例句
And have a good stay in the Big Apple.
祝您在纽约愉快。
Oh, no! Not today, please!
哦，不要！今天就饶了我吧。
many of them serious and senior scientists---- who dream of sending people to it.
其中的不少人是认真和资深的科学家，他们一直梦想着把人送上火星。