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
Would you like a cocktail before dinner?
你要在饭前来杯鸡尾酒吗？
Lend your money and lose your friend.
赔了夫人又折兵。
On his return to India he had the chance to travel to South Africa to work on a law case.
一回到印度，他就得到一个去南非办理一桩法律案件的机会。