Allergens
(allergen 的复数) n. 变(态反)应原\\n[化] 过敏素; 变应原
🗣️ 情景例句
I think the building just needs a good cleaning.
我想那座建筑只需要好好地打扫一下。
I phoned him last Saturday.
我上个星期六打电话给他。
She heard the front door open and heavy footsteps in the hall.
她听见前门被打开，走廊里响起重重的脚步声。