Ring-impfung
[医] 环状接种法
🧩 词语组成解析
ring
[riŋ]
n. 戒指，指环;铃声，钟声;环形物;拳击场;
vt. 形成环状;环绕;使（例如铃）响;打电话给;
vi. 按铃，敲钟;回响;成环形;
🗣️ 情景例句
He has to drive for twenty minutes to get from his house to his office.
从他的家到他的办公室有20分钟的车程。
She is majoring in modern languages.
她主修现代语言学。
When will it be ready?
什么时候能准备好？