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
Can you tell me about how long it'll take to get to...?
你能告诉我到……有多远吗？
That's quite all right.
没关系。
I'm glad to have met you.
很高兴遇到你。