Ratanhiatannic acid

[醫(yī)] 拉旦尼鞣酸, 卡默酸

?? 詞語組成解析

acid ['?s?d]
adj. 酸味的;尖刻的;酸的;酸性的; n. <化>酸;酸味物質(zhì);
acid尖，酸，銳利 →酸；酸的，酸性的

??? 情景例句

He was a dull man and you had to explain things very slowly to him.
他腦筋遲鈍，你必須慢慢地給他解釋事情。
How long does it take?
火車要開多久？
A yellow light on the dashboard flashed angrily and Bruce cheerfully announced that there was no oil in the engine!
儀表盤一盞黃燈閃著刺眼的光芒，布魯斯興致勃勃地宣布發(fā)動機(jī)里沒油了！
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?? 更多 R 開頭的單詞

retired [ri'tai?d]
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