Allergen
n. 变(态反)应原\\n[化] 过敏素; 变应原
🗣️ 情景例句
Good night, Mrs. Stewart.
晚安，Stewart太太。
I wrote to my uncle last night.I couldn't put it off any longer.
我昨晚给我的叔叔写了信.我不能再推迟寄信了。
I'm afraid that won't be possible,much as we'd like to.
尽管我们很想这样做，但恐怕不行了。