Penda
n. (Penda)人名；(英)彭达；(俄)片达
🗣️ 情景例句
That's right.
你完全正确。
You can't make something out of nothing.
巧妇难为无米之炊。
Ethanol is more effective at a concentration of 50-70 percent;
乙醇的浓度为50％至70％时比较有效，