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
In about 30 minutes.
大约半小时后。
I'm sorry I'm late. I overslept again.
抱歉我来晚了。我又睡过头了。
Poison to a snake is merely a luxury; it enables it to get its food with very little effort, no more effort than one bite.
毒液对毒蛇来说只不过是一种舒适生存的优越手段，它使蛇不用费多大力气就能捕获到食物，轻咬一口即可。