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
and wrote to his wife Martha.
给他妻子Martha写信。
They've been married for quite a few years.
他们结婚好多年了。
What's the weather like today?
今天天气怎么样？