Dollinger's ring
[醫] 竇林格氏環(后彈性層環)
?? 詞語組成解析
ring
[ri?]
n. 戒指，指環;鈴聲，鐘聲;環形物;拳擊場;
vt. 形成環狀;環繞;使（例如鈴）響;打電話給;
vi. 按鈴，敲鐘;回響;成環形;
??? 情景例句
We're on the fifth floor.
我們在五樓。
It's essential.
這是必要的。
Before long, the noise dropped completely and the boat began to drift gently across the water.
沒過多久，噪音便徹底消失，快艇開始在水面上慢悠悠地漂流。