Delff's butter
[医] 德尔夫氏试验(检咖啡因)
🧩 词语组成解析
butter
['bʌtɚ]
n. 黄油;黄油状的食品;奉承话;焊膏;
vt. 抹黄油于…上;用黄油煎食物;讨好;
🗣️ 情景例句
Nancy, would you like to come over the day after tomorrow?
南西，你后天要不要到我家来？
I have some difficulty in expressing myself.
我表达起来有点困难。
So the number of stars that we know exist is now estimated at about 300 million million million.
因此，我们所知道的现有恒星数目估计约有30亿×1000亿颗。