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
We can get our meals at Mrs. Montefiore's down the road.
我们可以沿大路走到Montefiore太太的旅馆去吃。
It was a six-hour flight.
它要6小时的飞行。
The demand for our products has kept rising.
要求定购我们产品的人越来越多。