Ring vaccination
[医]环围接种，环状接种
🧩 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;
vaccination
[ˌvæksi'neiʃən]
n. <医>种痘，接种;牛痘疤;
🗣️ 情景例句
You have nothing to worry about.
你没有什么好担心的。
You (or One) cannot make a silk purse out of a sow's ear.
粗瓷碗雕不出细花来。
When he went outside half an hour later, he was astonished to find the little black lamb was almost white.
半小时后，当他从屋里出来时，他惊奇地发现小黑羔羊全身几乎都变成白色。