Heiman's serum agar
[医] 海曼氏血清琼脂
🧩 词语组成解析
serum
['sɪrəm]
n. <医>血清，血浆;浆液，树液;乳清;
n. 琼脂, 石花菜\\n[化] 琼脂
🗣️ 情景例句
Hi, Grandpa.
嗨， 爷爷。
Doubt is the key of knowledge.
怀疑乃知识的钥匙。
But the first people who were like ourselves lived so long ago that even their sagas, if they had any, are forgotten.
但是，和我们相似的原始人生活的年代太久远了，因此，有关他们的传说既使有如今也失传了。