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
Are you prepared to make a ten-percent down payment?
你打算缴纳10%做为自备款吗？
How long will you remain here?
你将会在这里逗留多久？
When you think of the innumerable birds that one sees flying bout,
你可以想象出天上有看得见的飞来飞去、数不清的鸟，