Weltmann's serum test
[医] 韦耳特曼氏血清试验(检肝病、肺结核及风湿热)
🧩 词语组成解析
serum
['sɪrəm]
n. <医>血清，血浆;浆液，树液;乳清;
🗣️ 情景例句
It's five years ago.
那是五年前了。
How I wish the vacation would last longer!
如果假期长一点那该多好。
It took a very long time to carve a page for a book.
刻一页书要花费的时间太长。