Delta matal
[机] 得尔他合金
🧩 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;
🗣️ 情景例句
I find that hard to swallow.
对这一点我难一相信。
Nothing is given so freely as advice.
劝人最容易。
There is a house near the river.
小河旁有一间房子。