Delta matal
[機(jī)] 得爾他合金
?? 詞語組成解析
delta
['delt?]
n. 希臘語字母表第四字母δ;（河流的）三角洲;[數(shù)]變量增量;
??? 情景例句
It's your turn, Shirley.
輪到你了， Shirley。
Would you please make my reservation to Chicago for tomorrow?
請(qǐng)幫我預(yù)訂明天去芝加哥的座位好嗎？
Ironically, Europe, which had bequeathed the rabbit as a pest to Australia,
具有諷刺意味的是，歐洲把這種兔子作為有害動(dòng)物傳給澳洲，