Musing
a. 沉思的, 冥想的
✅ 同义词
🗣️ 情景例句
Bye.
再见。
It wasn't very expensive either.
而且也不太贵。
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，