Yabla video uses of 化验

之后 zhīhòu
hái
děi
抽血 chōuxuè
化验 huàyàn
产生 chǎnshēng
抗体 kàngtǐ
cái
有用 yǒuyòng
After that, one must have a blood test. The vaccine is only effective if antibodies have been produced.
hái
以为 yǐwéi
shì
化验 huàyàn
shì
de
实验室 shíyànshì
de
器皿 qìmǐn
I thought it was a laboratory... laboratory utensil.