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
It's going to be a piece of cake.
这种事不费吹灰之力。
We can't draw well.
我们不能画那么多。
A farm worker, who stayed up all night claimed to have seen a figure cutting corn in the moonlight.
有一个彻夜未眠的雇工还声称他看见一个人影在月光下收割庄稼。