Allergoid
类变应原
🗣️ 情景例句
Hi, Susan.
嗨， Susan。
He helps my father every day.
他每天都帮助我的父亲做事。
And then I watched all the glasses that were on the table fall off onto the floor.
接着我看到桌上所有的玻璃杯都掉到了地板上。