Serum-fast
[医] 抗血清的(细菌)
🧩 词语组成解析
serum
['sɪrəm]
n. <医>血清，血浆;浆液，树液;乳清;
fast
[fæst]
adj. 快的;走得快;感光快的;紧的;
adv. （比准确的时间或宣布的时间）快;迅速地;紧紧地;彻底地;
vi. 禁食，（尤指）斋戒;
n. 禁食期，斋戒期;断食，节食;
🗣️ 情景例句
She owes her good health to her regular life.
她把健康归功于规律的生活。
Do you want to remit the money by air mail or by cable, sir?
您想要航空信还是电汇，先生？
I'm sure you'll find that we are very competitive now.
我敢说你们一定会发现，我们现在的价钱是不怕别人竞争的。