Allergens
(allergen 的复数) n. 变(态反)应原\\n[化] 过敏素; 变应原
🗣️ 情景例句
and get some fresh air?
呼吸一些新鲜空气呢？
A man who has friend must show himself friendly.
与朋友交，必须友好相处。
That's right.
是的。