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
He has a great enthusiasm for personal computers.
他热衷于个人电脑。
Lucky bastard!
狗屎运！
Is that all? He doesn't say very much,does he?
就这些吗？他没写许多，是吗？