Delta-ring
[化] 三角垫
🧩 词语组成解析
delta
['deltə]
n. 希腊语字母表第四字母δ;（河流的）三角洲;[数]变量增量;
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
OK, Robbie, maybe you should watch him. Robbie
也许你得看着他点。
I asked him to paint it for me, but he wouldn't
我请他帮我油漆，但是他不肯。
What are your plans for the weekend?
你周末计划做什么？