Delta metal
[机] 德他合金
🧩 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;
metal
['mɛtl]
n. 金属;金属元素;成色;金色;
vt. 以金属覆盖;
🗣️ 情景例句
Marilyn Stewart, this is Harry Bennett.
Marilyn Stewart，这是Harry Bennett。
Where am I supposed to pay the excess train fare?
我应该在哪里补票？
This is because they had no natural enemies until the arrival of humans and therefore did not need to develop flying wings.
这是因为人类到达这里之前，这些鸟没有天敌，因此，它们不需要发育飞行的翅膀。