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
The radio has lost most of its audience, thanks to TV.
由于电视的存在，收音机失去了大量听众。
We tried in vain to make him change his mind.
我们试图使他改变他的主意，但白费力气。
If you park your car in the wrong place, a traffic policeman will soon find it.
一旦你把汽车停错了地方，交通警很快就会发现。