Serum sickness
[医] 血清病
🧩 词语组成解析
serum
['sɪrəm]
n. <医>血清，血浆;浆液，树液;乳清;
🗣️ 情景例句
Good-bye.
再见。
Not only did he make a promise, but he also kept it.
他不仅许下诺言，而且遵守了。
It's always warm in April and May,but it rains sometimes.
4月和5月的天气总暖洋洋的，但有时下雨。